diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/README.md b/lib/node_modules/@stdlib/math/base/special/sincos/README.md
index 5bd005b7ba55..6463c58b40b6 100644
--- a/lib/node_modules/@stdlib/math/base/special/sincos/README.md
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/README.md
@@ -88,6 +88,96 @@ 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/sincos.h"
+```
+
+#### stdlib_base_sincos( x, &sine, &cosine )
+
+Simultaneously computes the [sine][@stdlib/math/base/special/sin] and [cosine][@stdlib/math/base/special/cos] of a `number` (in radians).
+
+```c
+double cosine;
+double sine;
+
+stdlib_base_sincos( 4.0, &sine, &cosine );
+```
+
+The function accepts the following arguments:
+
+-   **x**:      `[in] double` input value.
+-   **sine**:   `[out] double*` destination for the sine.
+-   **cosine**: `[out] double*` destination for the cosine.
+
+```c
+void stdlib_base_sincos( const double x, double *sine, double *cosine );
+```
+
+</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/sincos.h"
+#include <stdio.h>
+
+int main( void ) {
+    const double x[] = { 0.0, 1.57, 3.14, 6.28 };
+
+    double cosine;
+    double sine;
+    int i;
+    for ( i = 0; i < 4; i++ ) {
+        stdlib_base_sincos( x[ i ], &sine, &cosine );
+        printf( "x: %lf => sine: %lf, cosine: %lf\n", x[ i ], sine, cosine );
+    }
+}
+```
+
+</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/sincos/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/math/base/special/sincos/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..b8f6bd11373c
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/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 sincos = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( sincos 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() * 20.0 ) - 10.0;
+		y = sincos( x );
+		if ( isnan( y[ 0 ] ) || isnan( y[ 1 ] ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y[ 0 ] ) || isnan( y[ 1 ] ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/benchmark/c/native/Makefile b/lib/node_modules/@stdlib/math/base/special/sincos/benchmark/c/native/Makefile
new file mode 100644
index 000000000000..f69e9da2b4d3
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/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/sincos/benchmark/c/native/benchmark.c b/lib/node_modules/@stdlib/math/base/special/sincos/benchmark/c/native/benchmark.c
new file mode 100644
index 000000000000..a4e08da57b89
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/benchmark/c/native/benchmark.c
@@ -0,0 +1,137 @@
+/**
+* @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 `sincos`.
+*/
+#include "stdlib/math/base/special/sincos.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "sincos"
+#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 cosine;
+	double sine;
+	double x;
+	double t;
+	int i;
+
+	t = tic();
+	for ( i = 0; i < ITERATIONS; i++ ) {
+		x = ( 20.0 * rand_double() ) - 10.0;
+		stdlib_base_sincos( x, &sine, &cosine );
+		if ( cosine != cosine || sine != sine) {
+			printf( "unexpected results\n" );
+			break;
+		}
+	}
+	elapsed = tic() - t;
+	if ( cosine != cosine || sine != sine) {
+		printf( "unexpected results\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/sincos/binding.gyp b/lib/node_modules/@stdlib/math/base/special/sincos/binding.gyp
new file mode 100644
index 000000000000..ec3992233442
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/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/sincos/examples/c/Makefile b/lib/node_modules/@stdlib/math/base/special/sincos/examples/c/Makefile
new file mode 100644
index 000000000000..6aed70daf167
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/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/sincos/examples/c/example.c b/lib/node_modules/@stdlib/math/base/special/sincos/examples/c/example.c
new file mode 100644
index 000000000000..c76ed0f88949
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/examples/c/example.c
@@ -0,0 +1,32 @@
+/**
+* @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/sincos.h"
+#include <stdio.h>
+
+int main( void ) {
+	const double x[] = { 0.0, 1.57, 3.14, 6.28 };
+
+	double cosine;
+	double sine;
+	int i;
+	for ( i = 0; i < 4; i++ ) {
+		stdlib_base_sincos( x[ i ], &sine, &cosine );
+		printf( "x: %lf => sine: %lf, cosine: %lf\n", x[ i ], sine, cosine );
+	}
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/include.gypi b/lib/node_modules/@stdlib/math/base/special/sincos/include.gypi
new file mode 100644
index 000000000000..575cb043c0bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/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/sincos/include/stdlib/math/base/special/sincos.h b/lib/node_modules/@stdlib/math/base/special/sincos/include/stdlib/math/base/special/sincos.h
new file mode 100644
index 000000000000..97228ca31d56
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/include/stdlib/math/base/special/sincos.h
@@ -0,0 +1,38 @@
+/**
+* @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.
+*/
+
+#ifndef STDLIB_MATH_BASE_SPECIAL_SINCOS_H
+#define STDLIB_MATH_BASE_SPECIAL_SINCOS_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
+
+/**
+* Simultaneously computes the sine and cosine of a number.
+*/
+void stdlib_base_sincos( const double x, double *sine, double *cosine );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_MATH_BASE_SPECIAL_SINCOS_H
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/lib/assign.js b/lib/node_modules/@stdlib/math/base/special/sincos/lib/assign.js
index 39170a106688..412b19af212e 100644
--- a/lib/node_modules/@stdlib/math/base/special/sincos/lib/assign.js
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/lib/assign.js
@@ -97,6 +97,7 @@ var Y = [ 0.0, 0.0 ];
 * // returns [ NaN, NaN ]
 */
 function sincos( x, out, stride, offset ) {
+	var tmp;
 	var ix;
 	var n;
 
@@ -128,9 +129,9 @@ function sincos( x, out, stride, offset ) {
 
 	switch ( n & 3 ) {
 	case 1:
-		ix = out[ offset + stride ];
+		tmp = out[ offset + stride ];
 		out[ offset + stride ] = -out[ offset ];
-		out[ offset ] = ix;
+		out[ offset ] = tmp;
 		return out;
 	case 2:
 		out[ offset ] *= -1;
@@ -138,9 +139,9 @@ function sincos( x, out, stride, offset ) {
 		return out;
 	case 3:
 		// Passing
-		ix = -out[ offset + stride ];
+		tmp = -out[ offset + stride ];
 		out[ offset + stride ] = out[ offset ];
-		out[ offset ] = ix;
+		out[ offset ] = tmp;
 		return out;
 	default:
 		return out;
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/lib/native.js b/lib/node_modules/@stdlib/math/base/special/sincos/lib/native.js
new file mode 100644
index 000000000000..aaebc7e5c2f8
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/lib/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 Float64Array = require( '@stdlib/array/float64' );
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Simultaneously computes the sine and cosine of a number.
+*
+* @param {number} x - input value (in radians)
+* @returns {Array<number>} sine and cosine
+*
+* @example
+* var v = sincos( 0.0 );
+* // returns <Float64Array>[ ~0.0, ~1.0 ]
+*
+* @example
+* var v = sincos( 3.141592653589793 / 2.0 );
+* // returns <Float64Array>[ ~1.0, ~0.0 ]
+*
+* @example
+* var v = sincos( -3.141592653589793 / 6.0 );
+* // returns <Float64Array>[ ~-0.5, ~0.866 ]
+*
+* @example
+* var v = sincos( NaN );
+* // returns <Float64Array>[ NaN, NaN ]
+*/
+function sincos( x ) {
+	var out = new Float64Array( 2 );
+	addon( x, out );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sincos;
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/manifest.json b/lib/node_modules/@stdlib/math/base/special/sincos/manifest.json
new file mode 100644
index 000000000000..45918c065001
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/manifest.json
@@ -0,0 +1,84 @@
+{
+  "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/napi/argv",
+        "@stdlib/napi/argv-double",
+        "@stdlib/napi/argv-float64array",
+        "@stdlib/napi/export",
+        "@stdlib/math/base/special/rempio2",
+        "@stdlib/number/float64/base/get-high-word",
+        "@stdlib/constants/float64/high-word-exponent-mask",
+        "@stdlib/constants/float64/high-word-abs-mask"
+      ]
+    },
+    {
+      "task": "benchmark",
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/special/rempio2",
+        "@stdlib/number/float64/base/get-high-word",
+        "@stdlib/constants/float64/high-word-exponent-mask",
+        "@stdlib/constants/float64/high-word-abs-mask"
+      ]
+    },
+    {
+      "task": "examples",
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/special/rempio2",
+        "@stdlib/number/float64/base/get-high-word",
+        "@stdlib/constants/float64/high-word-exponent-mask",
+        "@stdlib/constants/float64/high-word-abs-mask"
+      ]
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/src/Makefile b/lib/node_modules/@stdlib/math/base/special/sincos/src/Makefile
new file mode 100644
index 000000000000..bcf18aa46655
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/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/sincos/src/addon.c b/lib/node_modules/@stdlib/math/base/special/sincos/src/addon.c
new file mode 100644
index 000000000000..f676ac66b087
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/src/addon.c
@@ -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.
+*/
+
+#include "stdlib/math/base/special/sincos.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_double.h"
+#include "stdlib/napi/argv_float64array.h"
+#include "stdlib/napi/export.h"
+#include <node_api.h>
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env    environment under which the function is invoked
+* @param info   callback data
+* @return       Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+	STDLIB_NAPI_ARGV( env, info, argv, argc, 2 );
+	STDLIB_NAPI_ARGV_DOUBLE( env, x, argv, 0 );
+	STDLIB_NAPI_ARGV_FLOAT64ARRAY( env, y, ylen, argv, 1 );
+	stdlib_base_sincos( x, &y[ 0 ], &y[ 1 ] );
+	return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN( addon )
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/src/main.c b/lib/node_modules/@stdlib/math/base/special/sincos/src/main.c
new file mode 100644
index 000000000000..f5bf17ad1595
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/src/main.c
@@ -0,0 +1,163 @@
+/**
+* @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/sincos.h"
+#include "stdlib/constants/float64/high_word_abs_mask.h"
+#include "stdlib/constants/float64/high_word_exponent_mask.h"
+#include "stdlib/number/float64/base/get_high_word.h"
+#include "stdlib/math/base/special/rempio2.h"
+#include <stdint.h>
+
+static const double S1 = -1.66666666666666324348e-01; // 0xBFC55555, 0x55555549
+static const double S2 = 8.33333333332248946124e-03;  // 0x3F811111, 0x1110F8A6
+static const double S3 = -1.98412698298579493134e-04; // 0xBF2A01A0, 0x19C161D5
+static const double S4 = 2.75573137070700676789e-06;  // 0x3EC71DE3, 0x57B1FE7D
+static const double S5 = -2.50507602534068634195e-08; // 0xBE5AE5E6, 0x8A2B9CEB
+static const double S6 = 1.58969099521155010221e-10;  // 0x3DE5D93A, 0x5ACFD57C
+static const double C1 = 4.16666666666666019037e-02;  // 0x3FA55555, 0x5555554C
+static const double C2 = -1.38888888888741095749e-03; // 0xBF56C16C, 0x16C15177
+static const double C3 = 2.48015872894767294178e-05;  // 0x3EFA01A0, 0x19CB1590
+static const double C4 = -2.75573143513906633035e-07; // 0xBE927E4F, 0x809C52AD
+static const double C5 = 2.08757232129817482790e-09;  // 0x3E21EE9E, 0xBDB4B1C4
+static const double C6 = -1.13596475577881948265e-11; // 0xBDA8FAE9, 0xBE8838D4
+
+// High word for PI/4: 0x3fe921fb = 1072243195 => 00111111111010010010000111111011
+static const int32_t PIO4_HIGH_WORD = 0x3fe921fb;
+
+// The smaller of the two cutoffs for the sine and cosine kernels: 2^-27 = 0x3e400000 => 00111110010000000000000000000000
+static const int32_t SMALL_HIGH_WORD = 0x3e400000;
+
+/**
+* Computes the sine and cosine on \\( \approx \[-\pi/4, \pi/4\] \\) (except for \\(-0\\)), where \\( \pi/4 \approx 0.7854 \\).
+*
+* @private
+* @param x         input value (in radians, assumed to be bounded by `~π/4` in magnitude)
+* @param y         tail of `x`
+* @param sine      destination to store the sine
+* @param cosine    destination to store the cosine
+*/
+static void kernelSincos( const double x, const double y, double* sine, double* cosine ) {
+	double hz;
+	double r;
+	double v;
+	double w;
+	double z;
+
+	z = x * x;
+	w = z * z;
+	r = S2 + ( z * ( S3 + ( z * S4 ) ) ) + ( z * w * ( S5 + ( z * S6 ) ) );
+	v = z * x;
+	if ( y == 0.0 ) {
+		*sine = x + ( v * ( S1 + ( z * r ) ) );
+	} else {
+		*sine = x - ( ( ( z * ( ( 0.5 * y ) - ( v * r ) ) ) - y ) - ( v * S1 ) );
+	}
+	r = z * ( C1 + ( z * ( C2 + ( z * C3 ) ) ) );
+	r += w * w * ( C4 + ( z * ( C5 + ( z * C6 ) ) ) );
+	hz = 0.5 * z;
+	w = 1.0 - hz;
+	*cosine = w + ( ( ( 1.0 - w ) - hz ) + ( ( z * r ) - ( x * y ) ) );
+	return;
+}
+
+/**
+* Simultaneously computes the sine and cosine of a number.
+*
+* ## Method
+*
+* -   Let \\(S\\), \\(C\\), and \\(T\\) denote the \\(\sin\\), \\(\cos\\) and \\(\tan\\), respectively, on \\(\[-\pi/4, +\pi/4\]\\).
+*
+* -   Reduce the argument \\(x\\) to \\(y1+y2 = x-k\pi/2\\) in \\(\[-\pi/4, +\pi/4\]\\), and let \\(n = k \mod 4\\).
+*
+* -   We have
+*
+*     | n | sin(x) | cos(x) | tan(x) |
+*     | - | ------ | ------ | ------ |
+*     | 0 |    S   |    C   |   T    |
+*     | 1 |    C   |   -S   |  -1/T  |
+*     | 2 |   -S   |   -C   |   T    |
+*     | 3 |   -C   |    S   |  -1/T  |
+*
+* @param x         input value
+* @param sine      destination to store the sine
+* @param cosine    destination to store the cosine
+*
+* @example
+* double x = 0.0;
+*
+* double cosine;
+* double sine;
+* stdlib_base_sincos( x, &sine, &cosine );
+*/
+void stdlib_base_sincos( const double x, double* sine, double* cosine ) {
+	uint32_t uix;
+	double rem1;
+	double rem2;
+	double tmp;
+	int32_t ix;
+	int32_t n;
+
+	stdlib_base_float64_get_high_word( x, &uix );
+	ix = (int32_t)uix;
+
+	// Case: |x| ~< π/4
+	ix &= STDLIB_CONSTANT_FLOAT64_HIGH_WORD_ABS_MASK;
+	if ( ix <= PIO4_HIGH_WORD ) {
+		// Case: |x| ~< 2^-26
+		if ( ix < SMALL_HIGH_WORD ) {
+			if ( (int32_t)x == 0 ) {
+				*sine = x;
+				*cosine = 0.0;
+			}
+		}
+		return kernelSincos( x, 0.0, sine, cosine );
+	}
+
+	// Case: x is NaN or infinity
+	if ( ix >= STDLIB_CONSTANT_FLOAT64_HIGH_WORD_EXPONENT_MASK ) {
+		*sine = 0.0 / 0.0; // NaN
+		*cosine = 0.0 / 0.0; // NaN
+		return;
+	}
+
+	// Argument reduction...
+	n = stdlib_base_rempio2( x, &rem1, &rem2 );
+
+	// Compute the sine and cosine together:
+	kernelSincos( rem1, rem2, sine, cosine );
+
+	switch ( n & 3 ) {
+		case 1:
+			tmp = *cosine;
+			*cosine = -*sine;
+			*sine = tmp;
+			return;
+		case 2:
+			*sine *= -1;
+			*cosine *= -1;
+			return;
+		case 3:
+			// Passing
+			tmp = -*cosine;
+			*cosine = *sine;
+			*sine = tmp;
+			return;
+		default:
+			return;
+	}
+}
diff --git a/lib/node_modules/@stdlib/math/base/special/sincos/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/sincos/test/test.native.js
new file mode 100644
index 000000000000..5fb4604d0f19
--- /dev/null
+++ b/lib/node_modules/@stdlib/math/base/special/sincos/test/test.native.js
@@ -0,0 +1,276 @@
+/**
+* @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 tape = require( 'tape' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+var EPS = require( '@stdlib/constants/float64/eps' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var sincos = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( sincos instanceof Error )
+};
+
+
+// FIXTURES //
+
+var mediumNegative = require( './fixtures/julia/medium_negative.json' );
+var mediumPositive = require( './fixtures/julia/medium_positive.json' );
+var largeNegative = require( './fixtures/julia/large_negative.json' );
+var largePositive = require( './fixtures/julia/large_positive.json' );
+var hugeNegative = require( './fixtures/julia/huge_negative.json' );
+var hugePositive = require( './fixtures/julia/huge_positive.json' );
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sincos, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function computes the sine and cosine (for -256*pi < x < 0)', opts, function test( t ) {
+	var cosine;
+	var delta;
+	var sine;
+	var tol;
+	var x;
+	var y;
+	var i;
+
+	x = mediumNegative.x;
+	sine = mediumNegative.sine;
+	cosine = mediumNegative.cosine;
+
+	for ( i = 0; i < x.length; i++ ) {
+		y = sincos( x[i] );
+		if ( y[0] === sine[ i ] ) {
+			t.equal( y[0], sine[ i ], 'x: '+x[i]+'. Expected: '+sine[i] );
+		} else {
+			delta = abs( y[0] - sine[i] );
+			tol = EPS * abs( sine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[0]+'. Expected: '+sine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+		if ( y[1] === cosine[ i ] ) {
+			t.equal( y[1], cosine[ i ], 'x: '+x[i]+'. Expected: '+cosine[i] );
+		} else {
+			delta = abs( y[1] - cosine[i] );
+			tol = EPS * abs( cosine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[1]+'. Expected: '+cosine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+	}
+	t.end();
+});
+
+tape( 'the function computes the sine and cosine (for 0 < x < 256*pi)', opts, function test( t ) {
+	var cosine;
+	var delta;
+	var sine;
+	var tol;
+	var x;
+	var y;
+	var i;
+
+	x = mediumPositive.x;
+	sine = mediumPositive.sine;
+	cosine = mediumPositive.cosine;
+
+	for ( i = 0; i < x.length; i++ ) {
+		y = sincos( x[i] );
+		if ( y[0] === sine[ i ] ) {
+			t.equal( y[0], sine[ i ], 'x: '+x[i]+'. Expected: '+sine[i] );
+		} else {
+			delta = abs( y[0] - sine[i] );
+			tol = EPS * abs( sine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[0]+'. Expected: '+sine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+		if ( y[1] === cosine[ i ] ) {
+			t.equal( y[1], cosine[ i ], 'x: '+x[i]+'. Expected: '+cosine[i] );
+		} else {
+			delta = abs( y[1] - cosine[i] );
+			tol = EPS * abs( cosine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[1]+'. Expected: '+cosine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+	}
+	t.end();
+});
+
+tape( 'the function computes the sine and cosine (for -2**60 (pi/2) < x < -2**20 (pi/2))', opts, function test( t ) {
+	var cosine;
+	var delta;
+	var sine;
+	var tol;
+	var x;
+	var y;
+	var i;
+
+	x = largeNegative.x;
+	sine = largeNegative.sine;
+	cosine = largeNegative.cosine;
+
+	for ( i = 0; i < x.length; i++ ) {
+		y = sincos( x[i] );
+		if ( y[0] === sine[ i ] ) {
+			t.equal( y[0], sine[ i ], 'x: '+x[i]+'. Expected: '+sine[i] );
+		} else {
+			delta = abs( y[0] - sine[i] );
+			tol = EPS * abs( sine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[0]+'. Expected: '+sine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+		if ( y[1] === cosine[ i ] ) {
+			t.equal( y[1], cosine[ i ], 'x: '+x[i]+'. Expected: '+cosine[i] );
+		} else {
+			delta = abs( y[1] - cosine[i] );
+			tol = EPS * abs( cosine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[1]+'. Expected: '+cosine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+	}
+	t.end();
+});
+
+tape( 'the function computes the sine and cosine (for 2**20 (pi/2) < x < 2**60 (pi/2))', opts, function test( t ) {
+	var cosine;
+	var delta;
+	var sine;
+	var tol;
+	var x;
+	var y;
+	var i;
+
+	x = largePositive.x;
+	sine = largePositive.sine;
+	cosine = largePositive.cosine;
+
+	for ( i = 0; i < x.length; i++ ) {
+		y = sincos( x[i] );
+		if ( y[0] === sine[ i ] ) {
+			t.equal( y[0], sine[ i ], 'x: '+x[i]+'. Expected: '+sine[i] );
+		} else {
+			delta = abs( y[0] - sine[i] );
+			tol = EPS * abs( sine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[0]+'. Expected: '+sine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+		if ( y[1] === cosine[ i ] ) {
+			t.equal( y[1], cosine[ i ], 'x: '+x[i]+'. Expected: '+cosine[i] );
+		} else {
+			delta = abs( y[1] - cosine[i] );
+			tol = EPS * abs( cosine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[1]+'. Expected: '+cosine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+	}
+	t.end();
+});
+
+tape( 'the function computes the sine and cosine (for x <= -2**60 (PI/2))', opts, function test( t ) {
+	var cosine;
+	var delta;
+	var sine;
+	var tol;
+	var x;
+	var y;
+	var i;
+
+	x = hugeNegative.x;
+	sine = hugeNegative.sine;
+	cosine = hugeNegative.cosine;
+
+	for ( i = 0; i < x.length; i++ ) {
+		y = sincos( x[i] );
+		if ( y[0] === sine[ i ] ) {
+			t.equal( y[0], sine[ i ], 'x: '+x[i]+'. Expected: '+sine[i] );
+		} else {
+			delta = abs( y[0] - sine[i] );
+			tol = EPS * abs( sine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[0]+'. Expected: '+sine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+		if ( y[1] === cosine[ i ] ) {
+			t.equal( y[1], cosine[ i ], 'x: '+x[i]+'. Expected: '+cosine[i] );
+		} else {
+			delta = abs( y[1] - cosine[i] );
+			tol = EPS * abs( cosine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[1]+'. Expected: '+cosine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+	}
+	t.end();
+});
+
+tape( 'the function computes the sine and cosine (for x >= 2**60 (PI/2))', opts, function test( t ) {
+	var cosine;
+	var delta;
+	var sine;
+	var tol;
+	var x;
+	var y;
+	var i;
+
+	x = hugePositive.x;
+	sine = hugePositive.sine;
+	cosine = hugePositive.cosine;
+
+	for ( i = 0; i < x.length; i++ ) {
+		y = sincos( x[i] );
+		if ( y[0] === sine[ i ] ) {
+			t.equal( y[0], sine[ i ], 'x: '+x[i]+'. Expected: '+sine[i] );
+		} else {
+			delta = abs( y[0] - sine[i] );
+			tol = EPS * abs( sine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[0]+'. Expected: '+sine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+		if ( y[1] === cosine[ i ] ) {
+			t.equal( y[1], cosine[ i ], 'x: '+x[i]+'. Expected: '+cosine[i] );
+		} else {
+			delta = abs( y[1] - cosine[i] );
+			tol = EPS * abs( cosine[i] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y[1]+'. Expected: '+cosine[i]+'. tol: '+tol+'. delta: '+delta+'.' );
+		}
+	}
+	t.end();
+});
+
+tape( 'the function returns `NaN` if provided a `NaN`', opts, function test( t ) {
+	var v = sincos( NaN );
+	t.equal( isnan( v[0] ), true, 'returns expected value' );
+	t.equal( isnan( v[1] ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns `NaN` if provided `+infinity`', opts, function test( t ) {
+	var v = sincos( PINF );
+	t.equal( isnan( v[0] ), true, 'returns expected value' );
+	t.equal( isnan( v[1] ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns `NaN` if provided `-infinity`', opts, function test( t ) {
+	var v = sincos( NINF );
+	t.equal( isnan( v[0] ), true, 'returns expected value' );
+	t.equal( isnan( v[1] ), true, 'returns expected value' );
+	t.end();
+});