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feat: add lapack/base/dladiv
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‎lib/node_modules/@stdlib/lapack/base/dladiv/benchmark/benchmark.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var bench = require( '@stdlib/bench' );
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var uniform = require( '@stdlib/random/array/uniform' );
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var Float64Array = require( '@stdlib/array/float64' );
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var pkg = require( './../package.json' ).name;
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var dladiv = require( './../lib' );
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// VARIABLES //
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var options = {
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'dtype': 'float64'
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};
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// MAIN //
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bench( pkg, function benchmark( b ) {
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var re;
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var im;
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var N;
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var P;
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var Q;
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var i;
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var j;
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var k;
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N = 100;
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re = uniform( N, -500.0, 500.0, options );
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im = uniform( N, -500.0, 500.0, options );
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P = new Float64Array( 1 );
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Q = new Float64Array( 1 );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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j = i % N;
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k = ( i+1 ) % N;
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dladiv( re[ j ], im[ j ], re[ k ], im[ k ], P, Q );
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if ( isnan( P[ 0 ] ) || isnan( Q[ 0 ] ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnan( P[ 0 ] ) || isnan( Q[ 0 ] ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});

‎lib/node_modules/@stdlib/lapack/base/dladiv/benchmark/benchmark.ndarray.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var bench = require( '@stdlib/bench' );
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var uniform = require( '@stdlib/random/array/uniform' );
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var Float64Array = require( '@stdlib/array/float64' );
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var pkg = require( './../package.json' ).name;
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var dladiv = require( './../lib/ndarray.js' );
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// VARIABLES //
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var options = {
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'dtype': 'float64'
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};
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// MAIN //
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bench( pkg, function benchmark( b ) {
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var re;
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var im;
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var N;
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var P;
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var Q;
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var i;
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var j;
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var k;
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N = 100;
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re = uniform( N, -500.0, 500.0, options );
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im = uniform( N, -500.0, 500.0, options );
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P = new Float64Array( 1 );
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Q = new Float64Array( 1 );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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j = i % N;
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k = ( i+1 ) % N;
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dladiv( re[ j ], im[ j ], re[ k ], im[ k ], P, 0, Q, 0 );
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if ( isnan( P[ 0 ] ) || isnan( Q[ 0 ] ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnan( P[ 0 ] ) || isnan( Q[ 0 ] ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});

‎lib/node_modules/@stdlib/lapack/base/dladiv/examples/index.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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var Float64Array = require( '@stdlib/array/float64' );
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var dladiv = require( './../lib' );
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var P = new Float64Array( 1 );
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var Q = new Float64Array( 1 );
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dladiv( 2.0, 1.0, 3.0, 4.0, P, Q );
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console.log( '(2+i)/(3+4i) =', P[ 0 ], '+', Q[ 0 ], 'i' );

‎lib/node_modules/@stdlib/lapack/base/dladiv/lib/base.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var cdiv = require( '@stdlib/complex/float64/base/div' ).assign;
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var Float64Array = require( '@stdlib/array/float64' );
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// VARIABLES //
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var out = new Float64Array( 2 );
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// MAIN //
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/**
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* Divides two double-precision complex floating-point numbers in real arithmetic.
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*
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* @private
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* @param {number} a - real component of numerator
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* @param {number} b - imaginary component of numerator
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* @param {number} c - real component of denominator
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* @param {number} d - imaginary component of denominator
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* @param {Float64Array} P - array containing a single element which is overwritten by the real part of the quotient
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* @param {NonNegativeInteger} offsetP - index of the element in `P`
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* @param {Float64Array} Q - array containing a single element which is overwritten by the imaginary part of the quotient
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* @param {NonNegativeInteger} offsetQ - index of the element in `Q`
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* @returns {void}
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*
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* @example
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* var Float64Array = require( '@stdlib/array/float64' );
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*
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* var P = new Float64Array( 1 );
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* var Q = new Float64Array( 1 );
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*
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* dladiv( -13.0, -1.0, -2.0, 1.0, P, 0, Q, 0 );
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* // P => <Float64Array>[ 5.0 ]
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* // Q => <Float64Array>[ 3.0 ]
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*/
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function dladiv( a, b, c, d, P, offsetP, Q, offsetQ ) {
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cdiv( a, b, c, d, out, 1, 0 );
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P[ offsetP ] = out[ 0 ];
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Q[ offsetQ ] = out[ 1 ];
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}
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// EXPORTS //
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module.exports = dladiv;

‎lib/node_modules/@stdlib/lapack/base/dladiv/lib/dladiv.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var base = require( './base.js' );
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// MAIN //
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/**
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* Divides two double-precision complex floating-point numbers in real arithmetic.
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*
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* @param {number} a - real component of numerator
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* @param {number} b - imaginary component of numerator
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* @param {number} c - real component of denominator
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* @param {number} d - imaginary component of denominator
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* @param {Float64Array} P - array containing a single element which is overwritten by the real part of the quotient
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* @param {Float64Array} Q - array containing a single element which is overwritten by the imaginary part of the quotient
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* @returns {void}
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*
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* @example
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* var Float64Array = require( '@stdlib/array/float64' );
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*
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* var P = new Float64Array( 1 );
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* var Q = new Float64Array( 1 );
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*
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* dladiv( -13.0, -1.0, -2.0, 1.0, P, Q );
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* // P => <Float64Array>[ 5.0 ]
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* // Q => <Float64Array>[ 3.0 ]
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*/
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function dladiv( a, b, c, d, P, Q ) {
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return base( a, b, c, d, P, 0, Q, 0 );
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}
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// EXPORTS //
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module.exports = dladiv;

‎lib/node_modules/@stdlib/lapack/base/dladiv/lib/index.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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/**
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* LAPACK routine to divide two double-precision complex floating-point numbers.
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*
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* @module @stdlib/lapack/base/dladiv
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*
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* @example
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* var Float64Array = require( '@stdlib/array/float64' );
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* var dladiv = require( '@stdlib/lapack/base/dladiv' );
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*
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* var P = new Float64Array( 1 );
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* var Q = new Float64Array( 1 );
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*
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* dladiv( -13.0, -1.0, -2.0, 1.0, P, Q );
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* // P => <Float64Array>[ 5.0 ]
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* // Q => <Float64Array>[ 3.0 ]
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*/
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// MODULES //
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var join = require( 'path' ).join;
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var tryRequire = require( '@stdlib/utils/try-require' );
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var isError = require( '@stdlib/assert/is-error' );
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var main = require( './main.js' );
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// MAIN //
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var dladiv;
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var tmp = tryRequire( join( __dirname, './native.js' ) );
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if ( isError( tmp ) ) {
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dladiv = main;
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} else {
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dladiv = tmp;
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}
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// EXPORTS //
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module.exports = dladiv;

‎lib/node_modules/@stdlib/lapack/base/dladiv/lib/main.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
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var dladiv = require( './dladiv.js' );
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var ndarray = require( './ndarray.js' );
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// MAIN //
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setReadOnly( dladiv, 'ndarray', ndarray );
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// EXPORTS //
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module.exports = dladiv;

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