diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/README.md b/lib/node_modules/@stdlib/math/base/special/cosm1/README.md
index 833582bb112f..e958e18d4c3e 100644
--- a/lib/node_modules/@stdlib/math/base/special/cosm1/README.md
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/README.md
@@ -77,6 +77,94 @@ for ( i = 0; i < x.length; i++ ) {
<!-- /.examples -->
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/math/base/special/cosm1.h"
+```
+
+#### stdlib_base_cosm1( x )
+
+Computes `cos(x) - 1`, where `cos` is the [cosine][@stdlib/math/base/special/cos] of a `number` (in radians). This function should be used instead of manually calculating `cos(x) - 1` when the argument is near unity.
+
+```c
+double out = stdlib_base_cosm1( 0.0 );
+// returns 0.0
+
+out = stdlib_base_cosm1( 3.141592653589793238 / 4.0 );
+// returns ~-0.293
+```
+
+The function accepts the following arguments:
+
+- **x**: `[in] double` input value.
+
+```c
+double stdlib_base_cosm1( const double x );
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+#include "stdlib/math/base/special/cosm1.h"
+#include <stdio.h>
+
+int main( void ) {
+ const double x[] = { 0.0, 0.523, 0.785, 1.047, 3.14 };
+
+ double y;
+ int i;
+ for ( i = 0; i < 5; i++ ) {
+ y = stdlib_base_cosm1( x[ i ] );
+ printf( "cosm1(%lf) = %lf\n", x[ i ], y );
+ }
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
<section class="related">
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..b17b0de20fa8
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/benchmark.native.js
@@ -0,0 +1,60 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 randu = require( '@stdlib/random/base/randu' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var cosm1 = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+ 'skip': ( cosm1 instanceof Error )
+};
+
+
+// MAIN //
+
+bench( pkg+'::native', opts, function benchmark( b ) {
+ var x;
+ var y;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ x = ( randu() * 4.0 ) - 2.0;
+ y = cosm1( x );
+ if ( isnan( y ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( y ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/c/native/Makefile b/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/c/native/Makefile
new file mode 100644
index 000000000000..f69e9da2b4d3
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/c/native/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2024 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/cosm1/benchmark/c/native/benchmark.c b/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/c/native/benchmark.c
new file mode 100644
index 000000000000..ae484524f0e7
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/benchmark/c/native/benchmark.c
@@ -0,0 +1,136 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+/**
+* Benchmark `cosm1`.
+*/
+#include "stdlib/math/base/special/cosm1.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "cosm1"
+#define ITERATIONS 1000000
+#define REPEATS 3
+
+/**
+* Prints the TAP version.
+*/
+void print_version() {
+ printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total total number of tests
+* @param passing total number of passing tests
+*/
+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
+*/
+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
+*/
+double tic() {
+ struct timeval now;
+ gettimeofday( &now, NULL );
+ return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1].
+*
+* @return random number
+*/
+double rand_double() {
+ int r = rand();
+ return (double)r / ( (double)RAND_MAX + 1.0 );
+}
+
+/**
+* Runs a benchmark.
+*
+* @return elapsed time in seconds
+*/
+double benchmark() {
+ double elapsed;
+ double x;
+ double y;
+ double t;
+ int i;
+
+ t = tic();
+ for ( i = 0; i < ITERATIONS; i++ ) {
+ x = ( 4.0 * rand_double() ) - 2.0;
+ y = stdlib_base_cosm1( x );
+ 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/cosm1/binding.gyp b/lib/node_modules/@stdlib/math/base/special/cosm1/binding.gyp
new file mode 100644
index 000000000000..ec3992233442
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/binding.gyp
@@ -0,0 +1,170 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2024 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/cosm1/examples/c/Makefile b/lib/node_modules/@stdlib/math/base/special/cosm1/examples/c/Makefile
new file mode 100644
index 000000000000..6aed70daf167
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2024 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/cosm1/examples/c/example.c b/lib/node_modules/@stdlib/math/base/special/cosm1/examples/c/example.c
new file mode 100644
index 000000000000..c0bfd4c029d1
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/examples/c/example.c
@@ -0,0 +1,31 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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/cosm1.h"
+#include <stdio.h>
+
+int main( void ) {
+ const double x[] = { 0.0, 0.523, 0.785, 1.047, 3.14 };
+
+ double y;
+ int i;
+ for ( i = 0; i < 5; i++ ) {
+ y = stdlib_base_cosm1( x[ i ] );
+ printf( "cosm1(%lf) = %lf\n", x[ i ], y );
+ }
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/include.gypi b/lib/node_modules/@stdlib/math/base/special/cosm1/include.gypi
new file mode 100644
index 000000000000..575cb043c0bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2024 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': [
+ '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).include; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+ ],
+
+ # Add-on destination directory:
+ 'addon_output_dir': './src',
+
+ # Source files:
+ 'src_files': [
+ '<(src_dir)/addon.c',
+ '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+ ],
+
+ # Library dependencies:
+ 'libraries': [
+ '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+ ],
+
+ # Library directories:
+ 'library_dirs': [
+ '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libpath; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+ ],
+ }, # end variables
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/include/stdlib/math/base/special/cosm1.h b/lib/node_modules/@stdlib/math/base/special/cosm1/include/stdlib/math/base/special/cosm1.h
new file mode 100644
index 000000000000..ec05b20923d7
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/include/stdlib/math/base/special/cosm1.h
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+/**
+* Header file containing function declarations.
+*/
+#ifndef STDLIB_MATH_BASE_SPECIAL_COSM1_H
+#define STDLIB_MATH_BASE_SPECIAL_COSM1_H
+
+/*
+* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+* Computes the cosine of a number minus one.
+*/
+double stdlib_base_cosm1( const double x );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_MATH_BASE_SPECIAL_COSM1_H
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/lib/native.js b/lib/node_modules/@stdlib/math/base/special/cosm1/lib/native.js
new file mode 100644
index 000000000000..76f8ce18d34f
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/lib/native.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Computes the cosine of a number minus one.
+*
+* @private
+* @param {number} x - input value (in radians)
+* @returns {number} cosine minus one
+*
+* @example
+* var v = cosm1( 0.0 );
+* // returns 0.0
+*
+* @example
+* var PI = require( '@stdlib/constants/float64/pi' );
+*
+* var v = cosm1( PI/4.0 );
+* // returns ~-0.293
+*
+* @example
+* var PI = require( '@stdlib/constants/float64/pi' );
+*
+* var v = cosm1( -PI/6.0 );
+* // returns ~-0.134
+*
+* @example
+* var v = cosm1( NaN );
+* // returns NaN
+*/
+function cosm1( x ) {
+ return addon( x );
+}
+
+
+// EXPORTS //
+
+module.exports = cosm1;
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/lib/polyval_p.js b/lib/node_modules/@stdlib/math/base/special/cosm1/lib/polyval_p.js
index c22eb1ae4f8d..e8c2b1c199a1 100644
--- a/lib/node_modules/@stdlib/math/base/special/cosm1/lib/polyval_p.js
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/lib/polyval_p.js
@@ -1,7 +1,7 @@
/**
* @license Apache-2.0
*
-* Copyright (c) 2022 The Stdlib Authors.
+* Copyright (c) 2024 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.
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/manifest.json b/lib/node_modules/@stdlib/math/base/special/cosm1/manifest.json
new file mode 100644
index 000000000000..fec32d6cb6ec
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/manifest.json
@@ -0,0 +1,72 @@
+{
+ "options": {
+ "task": "build"
+ },
+ "fields": [
+ {
+ "field": "src",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "include",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "libraries",
+ "resolve": false,
+ "relative": false
+ },
+ {
+ "field": "libpath",
+ "resolve": true,
+ "relative": false
+ }
+ ],
+ "confs": [
+ {
+ "task": "build",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/math/base/napi/unary",
+ "@stdlib/math/base/special/cos"
+ ]
+ },
+ {
+ "task": "benchmark",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/math/base/special/cos"
+ ]
+ },
+ {
+ "task": "examples",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/math/base/special/cos"
+ ]
+ }
+ ]
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/scripts/evalpoly.js b/lib/node_modules/@stdlib/math/base/special/cosm1/scripts/evalpoly.js
index 8ca40064c562..e91a54a7cdcc 100644
--- a/lib/node_modules/@stdlib/math/base/special/cosm1/scripts/evalpoly.js
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/scripts/evalpoly.js
@@ -24,10 +24,15 @@
// MODULES //
var resolve = require( 'path' ).resolve;
+var readFileSync = require( '@stdlib/fs/read-file' ).sync;
var writeFileSync = require( '@stdlib/fs/write-file' ).sync;
var currentYear = require( '@stdlib/time/current-year' );
+var substringBefore = require( '@stdlib/string/substring-before' );
+var substringAfter = require( '@stdlib/string/substring-after' );
+var format = require( '@stdlib/string/format' );
var licenseHeader = require( '@stdlib/_tools/licenses/header' );
var compile = require( '@stdlib/math/base/tools/evalpoly-compile' );
+var compileC = require( '@stdlib/math/base/tools/evalpoly-compile-c' );
// VARIABLES //
@@ -51,6 +56,33 @@ var header = licenseHeader( 'Apache-2.0', 'js', {
header += '\n/* This is a generated file. Do not edit directly. */\n';
+// FUNCTIONS //
+
+/**
+* Inserts a compiled function into file content.
+*
+* @private
+* @param {string} text - source content
+* @param {string} id - function identifier
+* @param {string} str - function string
+* @returns {string} updated content
+*/
+function insert( text, id, str ) {
+ var before;
+ var after;
+ var begin;
+ var end;
+
+ begin = '// BEGIN: '+id;
+ end = '// END: '+id;
+
+ before = substringBefore( text, begin );
+ after = substringAfter( text, end );
+
+ return format( '%s// BEGIN: %s\n\n%s\n%s%s', before, id, str, end, after );
+}
+
+
// MAIN //
/**
@@ -60,7 +92,9 @@ header += '\n/* This is a generated file. Do not edit directly. */\n';
*/
function main() {
var fpath;
+ var copts;
var opts;
+ var file;
var str;
opts = {
@@ -70,6 +104,20 @@ function main() {
fpath = resolve( __dirname, '..', 'lib', 'polyval_p.js' );
str = header + compile( P );
writeFileSync( fpath, str, opts );
+
+ copts = {
+ 'dtype': 'double',
+ 'name': ''
+ };
+
+ fpath = resolve( __dirname, '..', 'src', 'main.c' );
+ file = readFileSync( fpath, opts );
+
+ copts.name = 'polyval_p';
+ str = compileC( P, copts );
+ file = insert( file, copts.name, str );
+
+ writeFileSync( fpath, file, opts );
}
main();
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/src/Makefile b/lib/node_modules/@stdlib/math/base/special/cosm1/src/Makefile
new file mode 100644
index 000000000000..bcf18aa46655
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2024 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/cosm1/src/addon.c b/lib/node_modules/@stdlib/math/base/special/cosm1/src/addon.c
new file mode 100644
index 000000000000..47e56ff8ee2e
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/src/addon.c
@@ -0,0 +1,22 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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/cosm1.h"
+#include "stdlib/math/base/napi/unary.h"
+
+STDLIB_MATH_BASE_NAPI_MODULE_D_D( stdlib_base_cosm1 )
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/src/main.c b/lib/node_modules/@stdlib/math/base/special/cosm1/src/main.c
new file mode 100644
index 000000000000..ec4290169883
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/src/main.c
@@ -0,0 +1,79 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*
+*
+* ## Notice
+*
+* The original C code, long comment, copyright, license, and constants are from [Cephes]{@link http://www.netlib.org/cephes}. The implementation follows the original, but has been modified for JavaScript.
+*
+* ```text
+* Copyright 2000 by Stephen L. Moshier
+*
+* Some software in this archive may be from the book _Methods and Programs for Mathematical Functions_ (Prentice-Hall or Simon & Schuster International, 1989) or from the Cephes Mathematical Library, a commercial product. In either event, it is copyrighted by the author. What you see here may be used freely but it comes with no support or guarantee.
+*
+* Stephen L. Moshier
+* moshier@na-net.ornl.gov
+* ```
+*/
+
+#include "stdlib/math/base/special/cosm1.h"
+#include "stdlib/math/base/special/cos.h"
+
+static const double PIO4 = 7.85398163397448309616e-1; // 4/π
+
+/* Begin auto-generated functions. The following functions are auto-generated. Do not edit directly. */
+
+// BEGIN: polyval_p
+
+/**
+* Evaluates a polynomial.
+*
+* ## Notes
+*
+* - The implementation uses [Horner's rule][horners-method] for efficient computation.
+*
+* [horners-method]: https://en.wikipedia.org/wiki/Horner%27s_method
+*
+* @param x value at which to evaluate the polynomial
+* @return evaluated polynomial
+*/
+static double polyval_p( const double x ) {
+ return 0.041666666666666664 + (x * (-0.0013888888888888872 + (x * (0.00002480158730157055 + (x * (-2.755731921499979e-7 + (x * (2.087675428708152e-9 + (x * (-1.147028484342536e-11 + (x * 4.737750796424621e-14)))))))))));
+}
+
+// END: polyval_p
+
+/* End auto-generated functions. */
+
+/**
+* Computes the cosine of a number minus one.
+*
+* @param x input value (in radians)
+* @return cosine minus one
+*
+* @example
+* double y = stdlib_base_cosm1( 0.0 );
+* // returns 0.0
+*/
+double stdlib_base_cosm1( const double x ) {
+ double x2;
+ if ( x < -PIO4 || x > PIO4 ) {
+ return stdlib_base_cos( x ) - 1.0;
+ }
+ x2 = x * x;
+ return ( -0.5 * x2 ) + ( x2 * x2 * polyval_p( x2 ) );
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.js b/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.js
index 740dbfc662f2..c883a20a8de8 100644
--- a/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.js
@@ -51,7 +51,7 @@ tape( 'main export is a function', function test( t ) {
t.end();
});
-tape( 'the function computes the cosine minues one more accurately inside the interval [-π/4,π/4]', function test( t ) {
+tape( 'the function computes the cosine minus one more accurately inside the interval [-π/4,π/4]', function test( t ) {
var expected;
var delta;
var tol;
@@ -109,18 +109,18 @@ tape( 'the function computes `cos(x) - 1.0` outside the interval [-π/4,π/4]',
tape( 'the function returns `NaN` if provided `NaN`', function test( t ) {
var v = cosm1( NaN );
- t.equal( isnan( v ), true, 'returns NaN' );
+ t.equal( isnan( v ), true, 'returns expected value' );
t.end();
});
tape( 'the function returns `NaN` if provided a `+infinity`', function test( t ) {
var v = cosm1( PINF );
- t.equal( isnan( v ), true, 'returns NaN' );
+ t.equal( isnan( v ), true, 'returns expected value' );
t.end();
});
tape( 'the function returns `NaN` if provided a `-infinity`', function test( t ) {
var v = cosm1( NINF );
- t.equal( isnan( v ), true, 'returns NaN' );
+ t.equal( isnan( v ), true, 'returns expected value' );
t.end();
});
diff --git a/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.native.js
new file mode 100644
index 000000000000..85899747f6ec
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/cosm1/test/test.native.js
@@ -0,0 +1,131 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 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 linspace = require( '@stdlib/array/base/linspace' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var cos = require( '@stdlib/math/base/special/cos' );
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+var EPS = require( '@stdlib/constants/float64/eps' );
+var PI = require( '@stdlib/constants/float64/pi' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var NPIO4 = -7.85398163397448309616e-1; // -4/π
+var PIO4 = 7.85398163397448309616e-1; // 4/π
+var cosm1 = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+ 'skip': ( cosm1 instanceof Error )
+};
+
+
+// FIXTURES //
+
+var data = require( './fixtures/python/data.json' );
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof cos, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function computes the cosine minus one more accurately inside the interval [-π/4,π/4]', opts, function test( t ) {
+ var expected;
+ var delta;
+ var tol;
+ var x;
+ var y;
+ var i;
+
+ x = data.x;
+ expected = data.expected;
+
+ for ( i = 0; i < x.length; i++ ) {
+ y = cosm1( x[i] );
+ if ( y === expected[ i ] ) {
+ t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
+ } else {
+ delta = abs( y - expected[i] );
+ tol = 2.0 * EPS * abs( expected[i] );
+ t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
+ }
+ }
+
+ t.end();
+});
+
+tape( 'the function computes `cos(x) - 1.0` outside the interval [-π/4,π/4]', opts, function test( t ) {
+ var expected;
+ var delta;
+ var tol;
+ var x;
+ var y;
+ var i;
+
+ x = linspace( PIO4, 4.0*PI, 100 );
+
+ for ( i = 0; i < x.length; i++ ) {
+ y = cosm1( x[i] );
+ expected = cos( x[i] ) - 1;
+ delta = abs( y - expected );
+ tol = EPS * abs( expected );
+ t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y+'. E: '+expected+'. tol: '+tol+'. Δ: '+delta+'.' );
+ }
+
+ x = linspace( -4.0*PI, NPIO4, 100 );
+
+ for ( i = 0; i < x.length; i++ ) {
+ y = cosm1( x[i] );
+ expected = cos( x[i] ) - 1.0;
+ delta = abs( y - expected );
+ tol = EPS * abs( expected );
+ t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y+'. E: '+expected+'. tol: '+tol+'. Δ: '+delta+'.' );
+ }
+
+ t.end();
+});
+
+tape( 'the function returns `NaN` if provided `NaN`', opts, function test( t ) {
+ var v = cosm1( NaN );
+ t.equal( isnan( v ), true, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns `NaN` if provided a `+infinity`', opts, function test( t ) {
+ var v = cosm1( PINF );
+ t.equal( isnan( v ), true, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns `NaN` if provided a `-infinity`', opts, function test( t ) {
+ var v = cosm1( NINF );
+ t.equal( isnan( v ), true, 'returns expected value' );
+ t.end();
+});