docs: add docs fodler

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---

Author: aayush0325

lib/node_modules/@stdlib/lapack/base/dlapy2/docs/repl.txt

@@ -0,0 +1,33 @@
+
+{{alias}}( x, y )
+    Returns sqrt( x^2 + y^2 ) in a manner which doesn't cause unnecessary
+    overflow.
+
+    If either argument is `NaN` and the other argument is not `+-Infinity`,
+    the function returns `NaN`.
+
+    Parameters
+    ----------
+    x: number
+        First number.
+
+    y: number
+        Second number.
+
+    Returns
+    -------
+    out: number
+        Sqrt( x^2 + y^2 ).
+
+    Examples
+    --------
+    > var h = {{alias}}( -5.0, 12.0 )
+    13.0
+    > h = {{alias}}( NaN, 12.0 )
+    NaN
+    > h = {{alias}}( -0.0, -0.0 )
+    0.0
+
+    See Also
+    --------
+

lib/node_modules/@stdlib/lapack/base/dlapy2/docs/types/index.d.ts

@@ -0,0 +1,45 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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
+
+/**
+* LAPACK routine to calculate sqrt( x^2 + y^2 ) in a manner which doesn't cause unnecessary overflow.
+*
+* @param x - number
+* @param y - number
+* @returns sqrt( x^2 + y^2 )
+*
+* @example
+* var h = dlapy2( -5.0, 12.0 );
+* // returns 13.0
+*
+* @example
+* var h = dlapy2( NaN, 12.0 );
+* // returns NaN
+*
+* @example
+* var h = dlapy2( -0.0, -0.0 );
+* // returns 0.0
+*/
+declare function dlapy2( x: number, y: number ): number;
+
+
+// EXPORTS //
+
+export = dlapy2;

lib/node_modules/@stdlib/lapack/base/dlapy2/docs/types/test.ts

@@ -0,0 +1,56 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 dlapy2 = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+	dlapy2( 8, 2 ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided values other than two numbers...
+{
+	dlapy2( true, 3 ); // $ExpectError
+	dlapy2( false, 2 ); // $ExpectError
+	dlapy2( '5', 1 ); // $ExpectError
+	dlapy2( [], 1 ); // $ExpectError
+	dlapy2( {}, 2 ); // $ExpectError
+	dlapy2( ( x: number ): number => x, 2 ); // $ExpectError
+
+	dlapy2( 9, true ); // $ExpectError
+	dlapy2( 9, false ); // $ExpectError
+	dlapy2( 5, '5' ); // $ExpectError
+	dlapy2( 8, [] ); // $ExpectError
+	dlapy2( 9, {} ); // $ExpectError
+	dlapy2( 8, ( x: number ): number => x ); // $ExpectError
+
+	dlapy2( [], true ); // $ExpectError
+	dlapy2( {}, false ); // $ExpectError
+	dlapy2( false, '5' ); // $ExpectError
+	dlapy2( {}, [] ); // $ExpectError
+	dlapy2( '5', ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided insufficient arguments...
+{
+	dlapy2(); // $ExpectError
+	dlapy2( 3 ); // $ExpectError
+}