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bench: add benchmarks
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‎lib/node_modules/@stdlib/lapack/base/iladlc/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 isnan = require( '@stdlib/math/base/assert/is-nan' );
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var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
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var pow = require( '@stdlib/math/base/special/pow' );
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var floor = require( '@stdlib/math/base/special/floor' );
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var pkg = require( './../package.json' ).name;
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var iladlc = require( './../lib/iladlc.js' );
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// VARIABLES //
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var LAYOUTS = [
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'row-major',
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'column-major'
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];
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {string} order - storage layout
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* @param {PositiveInteger} N - number of elements along each dimension
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* @returns {Function} benchmark function
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*/
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function createBenchmark( order, N ) {
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var A;
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A = discreteUniform( N*N, 0.0, 1.0, {
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'dtype': 'float64'
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});
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return benchmark;
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/**
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* Benchmark function.
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*
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* @private
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* @param {Benchmark} b - benchmark instance
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*/
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function benchmark( b ) {
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var z;
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var i;
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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z = iladlc( order, N, N, A, N );
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if ( isnan( z ) ) {
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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( z ) ) {
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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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}
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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var min;
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var max;
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var ord;
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var N;
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var f;
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var i;
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var k;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( k = 0; k < LAYOUTS.length; k++ ) {
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ord = LAYOUTS[ k ];
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for ( i = min; i <= max; i++ ) {
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N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
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f = createBenchmark( ord, N );
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bench( pkg+'::square_matrix:order='+ord+',size='+(N*N), f );
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}
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}
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}
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main();

‎lib/node_modules/@stdlib/lapack/base/iladlc/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 isnan = require( '@stdlib/math/base/assert/is-nan' );
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var pow = require( '@stdlib/math/base/special/pow' );
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var floor = require( '@stdlib/math/base/special/floor' );
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var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
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var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
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var pkg = require( './../package.json' ).name;
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var iladlc = require( './../lib/iladlc.js' );
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// VARIABLES //
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var LAYOUTS = [
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'row-major',
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'column-major'
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];
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {string} order - storage layout
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* @param {PositiveInteger} N - number of elements along each dimension
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* @returns {Function} benchmark function
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*/
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function createBenchmark( order, N ) {
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var A;
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A = discreteUniform( N*N, 0.0, 1.0, {
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'dtype': 'float64'
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});
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return benchmark;
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/**
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* Benchmark function.
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*
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* @private
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* @param {Benchmark} b - benchmark instance
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*/
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function benchmark( b ) {
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var sa1;
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var sa2;
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var z;
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var i;
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if ( isColumnMajor( order ) ) {
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sa1 = 1;
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sa2 = N;
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} else { // order === 'row-major'
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sa1 = N;
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sa2 = 1;
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}
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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z = iladlc( order, N, N, A, sa1, sa2, 0 );
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if ( isnan( z ) ) {
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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( z ) ) {
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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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}
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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var min;
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var max;
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var ord;
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var N;
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var f;
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var i;
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var k;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( k = 0; k < LAYOUTS.length; k++ ) {
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ord = LAYOUTS[ k ];
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for ( i = min; i <= max; i++ ) {
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N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
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f = createBenchmark( ord, N );
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bench( pkg+'::square_matrix:order='+ord+',size='+(N*N), f );
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}
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}
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}
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main();

‎lib/node_modules/@stdlib/lapack/base/iladlc/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 ndarray2array = require( '@stdlib/ndarray/base/to-array' );
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var Float64Array = require( '@stdlib/array/float64' );
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var shape2strides = require( '@stdlib/ndarray/base/shape2strides' );
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var iladlc = require( './../lib' );
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var shape = [ 3, 3 ];
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var order = 'row-major';
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var strides = shape2strides( shape, order );
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var A = new Float64Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0, 5.0, 6.0, 0.0 ] );
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console.log( ndarray2array( A, shape, strides, 0, order ) );
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var out = iladlc( order, shape[ 0 ], shape[ 1 ], A, strides[ 0 ] );
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console.log( out );

‎lib/node_modules/@stdlib/lapack/base/iladlc/package.json

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{
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"name": "@stdlib/lapack/base/iladlc",
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"version": "0.0.0",
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"description": "LAPACK routine to find the index of the last non zero column in a input matrix.",
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"license": "Apache-2.0",
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"author": {
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"name": "The Stdlib Authors",
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"url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
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},
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"contributors": [
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{
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"name": "The Stdlib Authors",
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"url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
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}
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],
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"main": "./lib",
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"directories": {
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"benchmark": "./benchmark",
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"doc": "./docs",
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"example": "./examples",
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"lib": "./lib",
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"test": "./test"
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},
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"types": "./docs/types",
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"scripts": {},
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"homepage": "https://github.com/stdlib-js/stdlib",
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"repository": {
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"type": "git",
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"url": "git://github.com/stdlib-js/stdlib.git"
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},
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"bugs": {
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"url": "https://github.com/stdlib-js/stdlib/issues"
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},
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"dependencies": {},
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"devDependencies": {},
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"engines": {
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"node": ">=0.10.0",
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"npm": ">2.7.0"
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},
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"os": [
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"aix",
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"darwin",
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"freebsd",
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"linux",
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"macos",
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"openbsd",
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"sunos",
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"win32",
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"windows"
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],
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"keywords": [
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"stdlib",
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"stdmath",
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"mathematics",
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"math",
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"lapack",
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"iladlc",
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"last",
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"column",
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"index",
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"matrix",
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"auxilary",
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"linear",
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"algebra",
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"subroutines",
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"array",
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"ndarray",
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"float64",
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"double",
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"float64array"
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]
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}

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