diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/README.md b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/README.md
new file mode 100644
index 000000000000..f86f5d54ed5c
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/README.md
@@ -0,0 +1,80 @@
+<!--
+
+@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.
+
+-->
+
+# isnan
+
+> Test if a half-precision floating-point numeric value is NaN.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var isnan = require( '@stdlib/number/float16/base/assert/is-nan' );
+```
+
+#### isnan( x )
+
+Tests if a half-precision floating-point `numeric` value is `NaN`.
+
+```javascript
+var bool = isnan( NaN );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var isnan = require( '@stdlib/number/float16/base/assert/is-nan' );
+
+var bool = isnan( NaN );
+// returns true
+
+bool = isnan( 5.0 );
+// returns false
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/benchmark/benchmark.js b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/benchmark/benchmark.js
new file mode 100644
index 000000000000..2034533bc313
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/benchmark/benchmark.js
@@ -0,0 +1,55 @@
+/**
+* @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 uniform = require( '@stdlib/random/array/uniform' );
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var map = require( '@stdlib/array/base/map' );
+var naryFunction = require( '@stdlib/utils/nary-function' );
+var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var isnan = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	x = map( uniform( 100, -5.0e6, 5.0e6 ), naryFunction( toFloat16, 1 ) );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = isnan( x[ i%x.length ] );
+		if ( typeof y !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( y ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/repl.txt b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/repl.txt
new file mode 100644
index 000000000000..889ff4104b9f
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/repl.txt
@@ -0,0 +1,24 @@
+
+{{alias}}( x )
+    Tests if a half-precision floating-point numeric value is `NaN`.
+
+    Parameters
+    ----------
+    x: number
+        Value to test.
+
+    Returns
+    -------
+    bool: boolean
+        Boolean indicating whether the value is `NaN`.
+
+    Examples
+    --------
+    > var bool = {{alias}}( NaN )
+    true
+    > bool = {{alias}}( 7.0 )
+    false
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/types/index.d.ts b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/types/index.d.ts
new file mode 100644
index 000000000000..3258788a177b
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @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
+
+/**
+* Tests if a half-precision floating-point numeric value is `NaN`.
+*
+* @param x - value to test
+* @returns boolean indicating whether the value is `NaN`
+*
+* @example
+* var bool = isnan( NaN );
+* // returns true
+*
+* @example
+* var bool = isnan( 7.0 );
+* // returns false
+*/
+declare function isnan( x: number ): boolean;
+
+
+// EXPORTS //
+
+export = isnan;
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/types/test.ts b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/types/test.ts
new file mode 100644
index 000000000000..1ed989ca7dc1
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/docs/types/test.ts
@@ -0,0 +1,46 @@
+/*
+* @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 isnan = require( './index' );
+
+
+// TESTS //
+
+// The function returns a boolean...
+{
+	isnan( NaN ); // $ExpectType boolean
+	isnan( 2 ); // $ExpectType boolean
+	isnan( 3 ); // $ExpectType boolean
+}
+
+// The compiler throws an error if the function is provided a value other than a number...
+{
+	isnan( true ); // $ExpectError
+	isnan( false ); // $ExpectError
+	isnan( null ); // $ExpectError
+	isnan( undefined ); // $ExpectError
+	isnan( [] ); // $ExpectError
+	isnan( {} ); // $ExpectError
+	isnan( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	isnan(); // $ExpectError
+	isnan( undefined, 123 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/examples/index.js b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/examples/index.js
new file mode 100644
index 000000000000..db1ca4d4fd71
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/examples/index.js
@@ -0,0 +1,27 @@
+/**
+* @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 isnan = require( './../lib' );
+
+console.log( isnan( NaN ) );
+// => true
+
+console.log( isnan( 5 ) );
+// => false
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/lib/index.js b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/lib/index.js
new file mode 100644
index 000000000000..46b0e9b67123
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/lib/index.js
@@ -0,0 +1,43 @@
+/**
+* @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';
+
+/**
+* Test if a half-precision floating-point numeric value is `NaN`.
+*
+* @module @stdlib/number/float16/base/assert/is-nan
+*
+* @example
+* var isnan = require( '@stdlib/number/float16/base/assert/is-nan' );
+*
+* var bool = isnan( NaN );
+* // returns true
+*
+* bool = isnan( 7.0 );
+* // returns false
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/lib/main.js b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/lib/main.js
new file mode 100644
index 000000000000..ffbb65dc6d12
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/lib/main.js
@@ -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.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Tests if a half-precision floating-point numeric value is `NaN`.
+*
+* @param {number} x - value to test
+* @returns {boolean} boolean indicating whether the value is `NaN`
+*
+* @example
+* var bool = isnan( NaN );
+* // returns true
+*
+* @example
+* var bool = isnan( 7.0 );
+* // returns false
+*/
+function isnan( x ) {
+	return ( x !== x );
+}
+
+
+// EXPORTS //
+
+module.exports = isnan;
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/package.json b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/package.json
new file mode 100644
index 000000000000..dfa426c21b3a
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/package.json
@@ -0,0 +1,75 @@
+{
+  "name": "@stdlib/number/float16/base/assert/is-nan",
+  "version": "0.0.0",
+  "description": "Test if a half-precision floating-point numeric value is NaN.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "stdmath",
+    "assertion",
+    "assert",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "math",
+    "mathematics",
+    "ieee754",
+    "floating-point",
+    "float",
+    "number",
+    "numeric",
+    "non-numeric",
+    "nan",
+    "is",
+    "isnan",
+    "type",
+    "check"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/test/test.js b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/test/test.js
new file mode 100644
index 000000000000..50807643f0c0
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/assert/is-nan/test/test.js
@@ -0,0 +1,62 @@
+/**
+* @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 Number = require( '@stdlib/number/ctor' );
+var isnan = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof isnan, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns `true` if provided `NaN`', function test( t ) {
+	t.strictEqual( isnan( NaN ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns `false` if not provided `NaN`', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'5',
+		5.0,
+		true,
+		false,
+		null,
+		void 0,
+		[],
+		{},
+		function noop() {},
+		new Number( NaN )
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( isnan( values[i] ), false, 'returns expected value when provided ' + values[ i ] );
+	}
+	t.end();
+});