diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/README.md b/lib/node_modules/@stdlib/math/base/special/binetf/README.md new file mode 100644 index 000000000000..2269be366cd0 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/README.md @@ -0,0 +1,247 @@ + + +# Binet's Formula + +> Evaluate [Binet's formula][fibonacci-number] extended to real numbers for single precision floating-point number. + +
+ +[Binet's formula][fibonacci-number] refers to the closed-form solution for computing the nth [Fibonacci number][fibonacci-number] and may be expressed + + + +```math +F_n = \frac{\varphi^n - \psi^n}{\sqrt{5}} +``` + + + + + +where `φ` is the [golden ratio][golden-ratio] and `ψ` is `1 - φ`. To extend [Fibonacci numbers][fibonacci-number] to real numbers, we may express [Binet's formula][fibonacci-number] as + + + +```math +F_x = \frac{\varphi^x - \varphi^{-x} \cdot \cos(\pi x)}{\sqrt{5}} +``` + + + + + +
+ + + +
+ +## Usage + +```javascript +var binetf = require( '@stdlib/math/base/special/binetf' ); +``` + +#### binetf( x ) + +Evaluates [Binet's formula][fibonacci-number] extended to real numbers. + +```javascript +var v = binetf( 0.0 ); +// returns 0.0 + +v = binetf( 1.0 ); +// returns 1.0 + +v = binetf( 2.0 ); +// returns ~1.0 + +v = binetf( 3.0 ); +// returns 2.0 + +v = binetf( -1.0 ); +// returns 1.0 + +v = binetf( 3.14 ); +// returns ~2.12 +``` + +If provided `NaN`, the function returns `NaN`. + +```javascript +var v = binetf( NaN ); +// returns NaN +``` + +
+ + + +
+ +## Notes + +- The function returns only **approximate** [Fibonacci numbers][fibonacci-number] for nonnegative integers. +- The function does **not** return complex numbers, guaranteeing real-valued return values. + +
+ + + +
+ +## Examples + + + +```javascript +var binetf = require( '@stdlib/math/base/special/binetf' ); + +var v; +var i; + +for ( i = 0; i < 79; i++ ) { + v = binetf( i ); + console.log( v ); +} +``` + +
+ + + + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/math/base/special/binetf.h" +``` + +#### stdlib_base_binetf( x ) + +Evaluates [Binet's formula][fibonacci-number] extended to real numbers for single precision floating-point number. + +```c +float out = stdlib_base_binetf( 0.0f ); +// returns 0.0f + +out = stdlib_base_binetf( 1.0f ); +// returns 1.0f +``` + +The function accepts the following arguments: + +- **x**: `[in] float` input value. + +```c +float stdlib_base_binetf( const float x ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/math/base/special/binetf.h" +#include + +int main( void ) { + const float x[] = { 0.0f, 1.0f, 2.0f, 3.0f, 4.0f }; + + float y; + int i; + for ( i = 0; i < 5; i++ ) { + y = stdlib_base_binetf( x[ i ] ); + printf( "binetf(%f) = %f\n", x[ i ], y ); + } +} +``` + +
+ + + +
+ + + + + + + + + + + + + + diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/benchmark.js b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/benchmark.js new file mode 100644 index 000000000000..5a0d40ec8cbb --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/benchmark.js @@ -0,0 +1,54 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var bench = require( '@stdlib/bench' ); +var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); +var isnanf = require( '@stdlib/math/base/assert/is-nanf' ); +var pkg = require( './../package.json' ).name; +var binetf = require( './../lib' ); + + +// MAIN // + +bench( pkg, function benchmark( b ) { + var x; + var y; + var i; + + x = discreteUniform( 100, 0, 79, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = binetf( x[ i%x.length ] ); + if ( isnanf( y ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnanf( y ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/benchmark.native.js new file mode 100644 index 000000000000..c7f322c99b14 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/benchmark.native.js @@ -0,0 +1,64 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var bench = require( '@stdlib/bench' ); +var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); +var isnanf = require( '@stdlib/math/base/assert/is-nanf' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var binetf = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( binetf instanceof Error ) +}; + + +// MAIN // + +bench( format( '%s::native', pkg ), opts, function benchmark( b ) { + var x; + var y; + var i; + + x = discreteUniform( 100, 0, 79, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = binetf( x[ i%x.length ] ); + if ( isnanf( y ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnanf( y ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/Makefile b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/Makefile new file mode 100644 index 000000000000..928de45a1a06 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/Makefile @@ -0,0 +1,127 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of C targets: +c_targets := benchmark.out + + +# RULES # + +#/ +# Compiles C source files. +# +# @param {string} [C_COMPILER] - C compiler +# @param {string} [CFLAGS] - C compiler flags +# @param {(string|void)} [fPIC] - compiler flag indicating whether to generate position independent code +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler +# @param {string} CFLAGS - C compiler flags +# @param {(string|void)} fPIC - compiler flag indicating whether to generate position independent code +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) -o $@ $< -lm + +#/ +# Runs compiled benchmarks. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/benchmark.c new file mode 100644 index 000000000000..b479fccff84d --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/benchmark.c @@ -0,0 +1,147 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include +#include +#include +#include +#include + +#define NAME "binetf" +#define ITERATIONS 1000000 +#define REPEATS 3 + +/** +* Prints the TAP version. +*/ +static void print_version( void ) { + printf( "TAP version 13\n" ); +} + +/** +* Prints the TAP summary. +* +* @param total total number of tests +* @param passing total number of passing tests +*/ +static void print_summary( int total, int passing ) { + printf( "#\n" ); + printf( "1..%d\n", total ); // TAP plan + printf( "# total %d\n", total ); + printf( "# pass %d\n", passing ); + printf( "#\n" ); + printf( "# ok\n" ); +} + +/** +* Prints benchmarks results. +* +* @param elapsed elapsed time in seconds +*/ +static void print_results( double elapsed ) { + double rate = (double)ITERATIONS / elapsed; + printf( " ---\n" ); + printf( " iterations: %d\n", ITERATIONS ); + printf( " elapsed: %0.9f\n", elapsed ); + printf( " rate: %0.9f\n", rate ); + printf( " ...\n" ); +} + +/** +* Returns a clock time. +* +* @return clock time +*/ +static double tic( void ) { + struct timeval now; + gettimeofday( &now, NULL ); + return (double)now.tv_sec + (double)now.tv_usec/1.0e6; +} + +/** +* Generates a random number on the interval [min,max). +* +* @param min minimum value (inclusive) +* @param max maximum value (exclusive) +* @return random number +*/ +static float random_uniform( const float min, const float max ) { + float v = (float)rand() / ( (float)RAND_MAX + 1.0f ); + return min + ( v*(max-min) ); +} + +/** +* Evaluates Binet's formula. +* +* @param x input value +* @return function result +*/ +float binetf( float x ) { + return (float)( powf( 1.618033988749895f, x ) - powf( -0.6180339887498948f, x ) ) / sqrtf( 5.0f ); +} + +/** +* Runs a benchmark. +* +* @return elapsed time in seconds +*/ +static double benchmark( void ) { + float x[ 100 ]; + double elapsed; + double t; + float y; + int i; + + for ( i = 0; i < 100; i++ ) { + x[ i ] = floor( random_uniform( 0.0f, 79.0f ) ); + } + + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + y = binetf( x[ i%100 ] ); + if ( y < 0 ) { + printf( "should return a nonnegative number\n" ); + break; + } + } + elapsed = tic() - t; + if ( y < 0 ) { + printf( "should return a nonnegative number\n" ); + } + return elapsed; +} + +/** +* Main execution sequence. +*/ +int main( void ) { + double elapsed; + int i; + + // Use the current time to seed the random number generator: + srand( time( NULL ) ); + + print_version(); + for ( i = 0; i < REPEATS; i++ ) { + printf( "# c::%s\n", NAME ); + elapsed = benchmark(); + print_results( elapsed ); + printf( "ok %d benchmark finished\n", i+1 ); + } + print_summary( REPEATS, REPEATS ); +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/native/Makefile b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/native/Makefile new file mode 100644 index 000000000000..979768abbcec --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/native/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := benchmark.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled benchmarks. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/native/benchmark.c b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/native/benchmark.c new file mode 100644 index 000000000000..d9f86372a4fe --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/benchmark/c/native/benchmark.c @@ -0,0 +1,138 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/math/base/special/binetf.h" +#include +#include +#include +#include +#include + +#define NAME "binetf" +#define ITERATIONS 1000000 +#define REPEATS 3 + +/** +* Prints the TAP version. +*/ +static void print_version( void ) { + printf( "TAP version 13\n" ); +} + +/** +* Prints the TAP summary. +* +* @param total total number of tests +* @param passing total number of passing tests +*/ +static void print_summary( int total, int passing ) { + printf( "#\n" ); + printf( "1..%d\n", total ); // TAP plan + printf( "# total %d\n", total ); + printf( "# pass %d\n", passing ); + printf( "#\n" ); + printf( "# ok\n" ); +} + +/** +* Prints benchmarks results. +* +* @param elapsed elapsed time in seconds +*/ +static void print_results( double elapsed ) { + double rate = (double)ITERATIONS / elapsed; + printf( " ---\n" ); + printf( " iterations: %d\n", ITERATIONS ); + printf( " elapsed: %0.9f\n", elapsed ); + printf( " rate: %0.9f\n", rate ); + printf( " ...\n" ); +} + +/** +* Returns a clock time. +* +* @return clock time +*/ +static double tic( void ) { + struct timeval now; + gettimeofday( &now, NULL ); + return (double)now.tv_sec + (double)now.tv_usec/1.0e6; +} + +/** +* Generates a random number on the interval [min,max). +* +* @param min minimum value (inclusive) +* @param max maximum value (exclusive) +* @return random number +*/ +static float random_uniform( const float min, const float max ) { + float v = (float)rand() / ( (float)RAND_MAX + 1.0f ); + return min + ( v*(max-min) ); +} + +/** +* Runs a benchmark. +* +* @return elapsed time in seconds +*/ +static double benchmark( void ) { + float x[ 100 ]; + double elapsed; + float y; + double t; + int i; + + for ( i = 0; i < 100; i++ ) { + x[ i ] = floor( random_uniform( 0.0f, 79.0f ) ); + } + + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + y = stdlib_base_binetf( x[ i%100 ] ); + if ( y != y ) { + printf( "should not return NaN\n" ); + break; + } + } + elapsed = tic() - t; + if ( y != y ) { + printf( "should not return NaN\n" ); + } + return elapsed; +} + +/** +* Main execution sequence. +*/ +int main( void ) { + double elapsed; + int i; + + // Use the current time to seed the random number generator: + srand( time( NULL ) ); + + print_version(); + for ( i = 0; i < REPEATS; i++ ) { + printf( "# c::native::%s\n", NAME ); + elapsed = benchmark(); + print_results( elapsed ); + printf( "ok %d benchmark finished\n", i+1 ); + } + print_summary( REPEATS, REPEATS ); +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/binding.gyp b/lib/node_modules/@stdlib/math/base/special/binetf/binding.gyp new file mode 100644 index 000000000000..0d6508a12e99 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/binding.gyp @@ -0,0 +1,170 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# A `.gyp` file for building a Node.js native add-on. +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # List of files to include in this file: + 'includes': [ + './include.gypi', + ], + + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Target name should match the add-on export name: + 'addon_target_name%': 'addon', + + # Set variables based on the host OS: + 'conditions': [ + [ + 'OS=="win"', + { + # Define the object file suffix: + 'obj': 'obj', + }, + { + # Define the object file suffix: + 'obj': 'o', + } + ], # end condition (OS=="win") + ], # end conditions + }, # end variables + + # Define compile targets: + 'targets': [ + + # Target to generate an add-on: + { + # The target name should match the add-on export name: + 'target_name': '<(addon_target_name)', + + # Define dependencies: + 'dependencies': [], + + # Define directories which contain relevant include headers: + 'include_dirs': [ + # Local include directory: + '<@(include_dirs)', + ], + + # List of source files: + 'sources': [ + '<@(src_files)', + ], + + # Settings which should be applied when a target's object files are used as linker input: + 'link_settings': { + # Define libraries: + 'libraries': [ + '<@(libraries)', + ], + + # Define library directories: + 'library_dirs': [ + '<@(library_dirs)', + ], + }, + + # C/C++ compiler flags: + 'cflags': [ + # Enable commonly used warning options: + '-Wall', + + # Aggressive optimization: + '-O3', + ], + + # C specific compiler flags: + 'cflags_c': [ + # Specify the C standard to which a program is expected to conform: + '-std=c99', + ], + + # C++ specific compiler flags: + 'cflags_cpp': [ + # Specify the C++ standard to which a program is expected to conform: + '-std=c++11', + ], + + # Linker flags: + 'ldflags': [], + + # Apply conditions based on the host OS: + 'conditions': [ + [ + 'OS=="mac"', + { + # Linker flags: + 'ldflags': [ + '-undefined dynamic_lookup', + '-Wl,-no-pie', + '-Wl,-search_paths_first', + ], + }, + ], # end condition (OS=="mac") + [ + 'OS!="win"', + { + # C/C++ flags: + 'cflags': [ + # Generate platform-independent code: + '-fPIC', + ], + }, + ], # end condition (OS!="win") + ], # end conditions + }, # end target <(addon_target_name) + + # Target to copy a generated add-on to a standard location: + { + 'target_name': 'copy_addon', + + # Declare that the output of this target is not linked: + 'type': 'none', + + # Define dependencies: + 'dependencies': [ + # Require that the add-on be generated before building this target: + '<(addon_target_name)', + ], + + # Define a list of actions: + 'actions': [ + { + 'action_name': 'copy_addon', + 'message': 'Copying addon...', + + # Explicitly list the inputs in the command-line invocation below: + 'inputs': [], + + # Declare the expected outputs: + 'outputs': [ + '<(addon_output_dir)/<(addon_target_name).node', + ], + + # Define the command-line invocation: + 'action': [ + 'cp', + '<(PRODUCT_DIR)/<(addon_target_name).node', + '<(addon_output_dir)/<(addon_target_name).node', + ], + }, + ], # end actions + }, # end target copy_addon + ], # end targets +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/docs/img/equation_binets_formula.svg b/lib/node_modules/@stdlib/math/base/special/binetf/docs/img/equation_binets_formula.svg new file mode 100644 index 000000000000..175ea54e68d2 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/docs/img/equation_binets_formula.svg @@ -0,0 +1,37 @@ + +upper F Subscript n Baseline equals StartFraction phi Superscript n Baseline minus psi Superscript n Baseline Over StartRoot 5 EndRoot EndFraction + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/docs/img/equation_binets_formula_real_numbers.svg b/lib/node_modules/@stdlib/math/base/special/binetf/docs/img/equation_binets_formula_real_numbers.svg new file mode 100644 index 000000000000..0f3c1b867690 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/docs/img/equation_binets_formula_real_numbers.svg @@ -0,0 +1,56 @@ + +upper F Subscript x Baseline equals StartFraction phi Superscript x Baseline minus phi Superscript negative x Baseline dot cosine left-parenthesis pi x right-parenthesis Over StartRoot 5 EndRoot EndFraction + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/docs/repl.txt b/lib/node_modules/@stdlib/math/base/special/binetf/docs/repl.txt new file mode 100644 index 000000000000..58b6f00210bb --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/docs/repl.txt @@ -0,0 +1,36 @@ + +{{alias}}( x ) + Evaluates Binet's formula extended to real numbers. + + If provided `NaN`, the function returns `NaN`. + + Parameters + ---------- + x: number + Input value. + + Returns + ------- + y: number + Function result. + + Examples + -------- + > var y = {{alias}}( 0.0 ) + 0.0 + > y = {{alias}}( 1.0 ) + 1.0 + > y = {{alias}}( 2.0 ) + ~1.0 + > y = {{alias}}( 3.0 ) + 2.0 + > y = {{alias}}( 4.0 ) + 3.0 + > y = {{alias}}( 5.0 ) + ~5.0 + > y = {{alias}}( NaN ) + NaN + + See Also + -------- + diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/docs/types/index.d.ts b/lib/node_modules/@stdlib/math/base/special/binetf/docs/types/index.d.ts new file mode 100644 index 000000000000..5622152de946 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/docs/types/index.d.ts @@ -0,0 +1,72 @@ +/* +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +// TypeScript Version: 4.1 + +/** +* Evaluates Binet's formula extended to real numbers for single precision floating-point number. +* +* @param x - input value +* @returns real-valued result +* +* @example +* var y = binetf( 0.0 ); +* // returns 0.0 +* +* @example +* var y = binetf( 1.0 ); +* // returns 1.0 +* +* @example +* var y = binetf( 2.0 ); +* // returns ~1.0 +* +* @example +* var y = binetf( 3.0 ); +* // returns 2.0 +* +* @example +* var y = binetf( 4.0 ); +* // returns 3.0 +* +* @example +* var y = binetf( 5.0 ); +* // returns ~5.0 +* +* @example +* var y = binetf( 6.0 ); +* // returns ~8.0 +* +* @example +* var y = binetf( NaN ); +* // returns NaN +* +* @example +* var y = binetf( 3.14 ); +* // returns ~2.12 +* +* @example +* var y = binetf( -1.0 ); +* // returns 1.0 +*/ +declare function binetf( x: number ): number; + + +// EXPORTS // + +export = binetf; diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/docs/types/test.ts b/lib/node_modules/@stdlib/math/base/special/binetf/docs/types/test.ts new file mode 100644 index 000000000000..6e9446657da5 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/docs/types/test.ts @@ -0,0 +1,44 @@ +/* +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +import binetf = require( './index' ); + + +// TESTS // + +// The function returns a number... +{ + binetf( 8 ); // $ExpectType number +} + +// The compiler throws an error if the function is provided a value other than a number... +{ + binetf( true ); // $ExpectError + binetf( false ); // $ExpectError + binetf( null ); // $ExpectError + binetf( undefined ); // $ExpectError + binetf( '5' ); // $ExpectError + binetf( [] ); // $ExpectError + binetf( {} ); // $ExpectError + binetf( ( x: number ): number => x ); // $ExpectError +} + +// The compiler throws an error if the function is provided insufficient arguments... +{ + binetf(); // $ExpectError +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/examples/c/Makefile b/lib/node_modules/@stdlib/math/base/special/binetf/examples/c/Makefile new file mode 100644 index 000000000000..c8f8e9a1517b --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/examples/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := example.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled examples. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/examples/c/example.c b/lib/node_modules/@stdlib/math/base/special/binetf/examples/c/example.c new file mode 100644 index 000000000000..2b39aa8c277e --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/examples/c/example.c @@ -0,0 +1,30 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/math/base/special/binetf.h" +#include + +int main( void ) { + const float x[] = { 0.0f, 1.0f, 2.0f, 3.0f, 4.0f }; + float y; + int i; + for ( i = 0; i < 5; i++ ) { + y = stdlib_base_binetf( x[ i ] ); + printf( "binetf(%f) = %f\n", x[ i ], y ); + } +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/examples/index.js b/lib/node_modules/@stdlib/math/base/special/binetf/examples/index.js new file mode 100644 index 000000000000..f32e0b298c77 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/examples/index.js @@ -0,0 +1,29 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +var binetf = require( './../lib' ); + +var v; +var i; + +for ( i = 0; i < 79; i++ ) { + v = binetf( i ); + console.log( v ); +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/include.gypi b/lib/node_modules/@stdlib/math/base/special/binetf/include.gypi new file mode 100644 index 000000000000..bee8d41a2caf --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/include.gypi @@ -0,0 +1,53 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# A GYP include file for building a Node.js native add-on. +# +# Main documentation: +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Source directory: + 'src_dir': './src', + + # Include directories: + 'include_dirs': [ + '=0.10.0", + "npm": ">2.7.0" + }, + "os": [ + "aix", + "darwin", + "freebsd", + "linux", + "macos", + "openbsd", + "sunos", + "win32", + "windows" + ], + "keywords": [ + "stdlib", + "stdmath", + "mathematics", + "math", + "special functions", + "special", + "function", + "binetf", + "fibonacci", + "fib", + "number", + "reals" + ], + "__stdlib__": { + "scaffold": { + "$schema": "math/base@v1.0", + "base_alias": "binetf", + "alias": "binetf", + "pkg_desc": "evaluate Binet's formula extended to real numbers for a single-precision floating-point number", + "desc": "evaluates Binet's formula extended to real numbers for a single-precision floating-point number", + "short_desc": "Binet's formula", + "parameters": [ + { + "name": "x", + "desc": "input value", + "type": { + "javascript": "number", + "jsdoc": "number", + "c": "float", + "dtype": "float32" + }, + "domain": [ + { + "min": "-infinity", + "max": "infinity" + } + ], + "rand": { + "prng": "random/base/uniform", + "parameters": [ + -50, + 50 + ] + }, + "example_values": [ + 250.8, + -41.2, + 0.37, + -120.5, + 73.1, + -7.6, + 12.3, + -0.95, + 19.8, + -25.7, + 5.5, + -3.9, + 34.6, + -88.4, + 1.7, + 0, + 47.8, + -15.4, + 102.6, + -10.3 + ] + } + ], + "output_policy": "real_floating_point_and_generic", + "returns": { + "desc": "real-valued result", + "type": { + "javascript": "number", + "jsdoc": "number", + "c": "float", + "dtype": "float32" + } + }, + "keywords": [ + "binetf", + "fibonacci", + "fib", + "number", + "reals" + ], + "extra_keywords": [] + } + } +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/src/Makefile b/lib/node_modules/@stdlib/math/base/special/binetf/src/Makefile new file mode 100644 index 000000000000..2caf905cedbe --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/src/Makefile @@ -0,0 +1,70 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + + +# RULES # + +#/ +# Removes generated files for building an add-on. +# +# @example +# make clean-addon +#/ +clean-addon: + $(QUIET) -rm -f *.o *.node + +.PHONY: clean-addon + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: clean-addon + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/src/addon.c b/lib/node_modules/@stdlib/math/base/special/binetf/src/addon.c new file mode 100644 index 000000000000..d5fd69103eb8 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/src/addon.c @@ -0,0 +1,22 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/math/base/special/binetf.h" +#include "stdlib/math/base/napi/unary.h" + +STDLIB_MATH_BASE_NAPI_MODULE_F_F( stdlib_base_binetf ) diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/src/main.c b/lib/node_modules/@stdlib/math/base/special/binetf/src/main.c new file mode 100644 index 000000000000..7c9beee8b6ad --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/src/main.c @@ -0,0 +1,57 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/math/base/special/binetf.h" +#include "stdlib/math/base/assert/is_nanf.h" +#include "stdlib/math/base/special/cospif.h" +#include "stdlib/math/base/special/powf.h" +#include "stdlib/constants/float32/phi.h" +#include "stdlib/constants/float32/pinf.h" +#include "stdlib/constants/float32/ninf.h" + +static const float SQRT_5 = 2.23606797749979f; + +/** +* Evaluates Binet's formula extended to real numbers for single precision floating-point number. +* +* ## Notes +* +* - [Non integer Fibonacci numbers][1] +* - [Interpolated Fibonacci numbers - real or complex][2] +* +* [1]: https://math.stackexchange.com/questions/798190/non-integer-fibonacci-numbers +* [2]: https://math.stackexchange.com/questions/589841/interpolated-fibonacci-numbers-real-or-complex +* +* @param x input value +* @return real-valued result +* +* @example +* float y = stdlib_base_binetf( 2.0f ); +* // returns 1.0f +*/ +float stdlib_base_binetf( const float x ) { + float a; + float b; + + if ( stdlib_base_is_nanf( x ) || x == STDLIB_CONSTANT_FLOAT32_PINF || x == STDLIB_CONSTANT_FLOAT32_NINF ) { + return 0.0f / 0.0f; // NaN + } + a = stdlib_base_powf( STDLIB_CONSTANT_FLOAT32_PHI, x ); + b = stdlib_base_cospif( x ) / a; + return ( a - b ) / SQRT_5; +} diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/test/test.js b/lib/node_modules/@stdlib/math/base/special/binetf/test/test.js new file mode 100644 index 000000000000..fdb6d722f00c --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/test/test.js @@ -0,0 +1,100 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var tape = require( 'tape' ); +var isnanf = require( '@stdlib/math/base/assert/is-nanf' ); +var PINF = require( '@stdlib/constants/float32/pinf' ); +var NINF = require( '@stdlib/constants/float32/ninf' ); +var EPS = require( '@stdlib/constants/float32/eps' ); +var fibonacci = require( '@stdlib/math/base/special/fibonacci' ); +var negaFibonacci = require( '@stdlib/math/base/special/negafibonacci' ); +var f32 = require( '@stdlib/number/float64/base/to-float32' ); +var abs = require( '@stdlib/math/base/special/abs' ); +var isAlmostSameValue = require( '@stdlib/number/float32/base/assert/is-almost-same-value' ); +var binetf = require( './../lib' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof binetf, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'if provided `NaN`, the function returns `NaN`', function test( t ) { + var v = binetf( NaN ); + t.strictEqual( isnanf( v ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'if provided `+infinity`, the function returns `NaN`', function test( t ) { + var v = binetf( PINF ); + t.strictEqual( isnanf( v ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'if provided `-infinity`, the function returns `NaN`', function test( t ) { + var v = binetf( NINF ); + t.strictEqual( isnanf( v ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'for nonnegative integers, the function approximates the nth Fibonacci number', function test( t ) { + var expected; + var delta; + var tol; + var v; + var i; + for ( i = 0; i < 79; i++ ) { + v = binetf( i ); + expected = f32( fibonacci( i ) ); + if ( isAlmostSameValue( v, expected ) ) { + t.strictEqual( v, expected, 'returns the '+i+'th Fibonacci number' ); + } else { + delta = abs( v - expected ); + tol = 13.0 * EPS * abs( expected ); + t.strictEqual( delta <= tol, true, 'returns approximation. n: '+i+'. expected: '+expected+'. actual: '+v+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); + +tape( 'for nonpositive integers, the function approximates the nth negaFibonacci number', function test( t ) { + var expected; + var delta; + var tol; + var v; + var i; + for ( i = 0; i > -79; i-- ) { + v = binetf( i ); + expected = f32( negaFibonacci( i ) ); + if ( isAlmostSameValue( v, expected ) ) { + t.strictEqual( v, expected, 'returns the '+i+'th negaFibonacci number' ); + } else { + delta = abs( v - expected ); + tol = 12.0 * EPS * abs( expected ); + t.strictEqual( delta <= tol, true, 'returns approximation. n: '+i+'. expected: '+expected+'. actual: '+v+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); diff --git a/lib/node_modules/@stdlib/math/base/special/binetf/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/binetf/test/test.native.js new file mode 100644 index 000000000000..2aa433ce1343 --- /dev/null +++ b/lib/node_modules/@stdlib/math/base/special/binetf/test/test.native.js @@ -0,0 +1,109 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var tape = require( 'tape' ); +var isnanf = require( '@stdlib/math/base/assert/is-nanf' ); +var PINF = require( '@stdlib/constants/float32/pinf' ); +var NINF = require( '@stdlib/constants/float32/ninf' ); +var EPS = require( '@stdlib/constants/float32/eps' ); +var fibonacci = require( '@stdlib/math/base/special/fibonacci' ); +var negaFibonacci = require( '@stdlib/math/base/special/negafibonacci' ); +var abs = require( '@stdlib/math/base/special/abs' ); +var f32 = require( '@stdlib/number/float64/base/to-float32' ); +var isAlmostSameValue = require( '@stdlib/number/float32/base/assert/is-almost-same-value' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// VARIABLES // + +var binetf = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( binetf instanceof Error ) +}; + + +// TESTS // + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof binetf, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'if provided `NaN`, the function returns `NaN`', opts, function test( t ) { + var v = binetf( NaN ); + t.strictEqual( isnanf( v ), true, 'returns expected value when provided a NaN' ); + t.end(); +}); + +tape( 'if provided `+infinity`, the function returns `NaN`', opts, function test( t ) { + var v = binetf( PINF ); + t.strictEqual( isnanf( v ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'if provided `-infinity`, the function returns `NaN`', opts, function test( t ) { + var v = binetf( NINF ); + t.strictEqual( isnanf( v ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'for nonnegative integers, the function approximates the nth Fibonacci number', opts, function test( t ) { + var expected; + var delta; + var tol; + var v; + var i; + for ( i = 0; i < 79; i++ ) { + v = binetf( i ); + expected = f32( fibonacci( i ) ); + if ( isAlmostSameValue( v, expected ) ) { + t.strictEqual( v, expected, 'returns the '+i+'th Fibonacci number' ); + } else { + delta = abs( v - expected ); + tol = 13.0 * EPS * abs( expected ); + t.strictEqual( delta <= tol, true, 'returns approximation. n: '+i+'. expected: '+expected+'. actual: '+v+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); + +tape( 'for nonpositive integers, the function approximates the nth negaFibonacci number', opts, function test( t ) { + var expected; + var delta; + var tol; + var v; + var i; + for ( i = 0; i > -79; i-- ) { + v = binetf( i ); + expected = f32( negaFibonacci( i ) ); + if ( isAlmostSameValue( v, expected ) ) { + t.strictEqual( v, expected, 'returns the '+i+'th negaFibonacci number' ); + } else { + delta = abs( v - expected ); + tol = 12.0 * EPS * abs( expected ); + t.strictEqual( delta <= tol, true, 'returns approximation. n: '+i+'. expected: '+expected+'. actual: '+v+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +});