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test: add initial ndarray tests
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‎lib/node_modules/@stdlib/lapack/base/dlange/test/test.dlange.js‎

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@@ -163,6 +163,22 @@ tape( 'the function throws an error if provided a fourth argument which is not a
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}
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});
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tape( 'the function returns zero if number of rows or columns is zero', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = ONE_NORM_ROW_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.order, data.norm, 0, data.N, A, data.LDA, work );
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t.strictEqual( out, 0.0, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the one norm for a given matrix A (row-major)', function test( t ) {
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var data;
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var work;

‎lib/node_modules/@stdlib/lapack/base/dlange/test/test.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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/* eslint-disable id-length, max-len */
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'use strict';
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// MODULES //
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var tape = require( 'tape' );
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var Float64Array = require( '@stdlib/array/float64' );
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var dlange = require( './../lib/ndarray.js' );
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// FIXTURES //
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var ONE_NORM_ROW_MAJOR = require( './fixtures/one_norm_row_major.json' );
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var ONE_NORM_COLUMN_MAJOR = require( './fixtures/one_norm_column_major.json' );
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var INFINITY_NORM_ROW_MAJOR = require( './fixtures/infinity_norm_row_major.json' );
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var INFINITY_NORM_COLUMN_MAJOR = require( './fixtures/infinity_norm_column_major.json' );
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var MAX_ELEMENT_ROW_MAJOR = require( './fixtures/max_element_row_major.json' );
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var MAX_ELEMENT_COLUMN_MAJOR = require( './fixtures/max_element_column_major.json' );
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var FROBENIUS_NORM_ROW_MAJOR = require( './fixtures/frobenius_norm_row_major.json' );
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var FROBENIUS_NORM_COLUMN_MAJOR = require( './fixtures/frobenius_norm_column_major.json' );
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof dlange, 'function', 'main export is a function' );
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t.end();
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});
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tape( 'the function has an arity of 10', function test( t ) {
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t.strictEqual( dlange.length, 10, 'returns expected value' );
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t.end();
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});
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tape( 'the function throws an error if provided a second argument which is not a valid operation', function test( t ) {
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var values;
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var data;
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var work;
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var A;
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var i;
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data = FROBENIUS_NORM_ROW_MAJOR;
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values = [
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'foo',
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'bar',
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'beep',
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'boop',
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-5,
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NaN,
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true,
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false,
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null,
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void 0,
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[],
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{},
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function noop() {}
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];
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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for ( i = 0; i < values.length; i++ ) {
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t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
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}
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t.end();
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function badValue( value ) {
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return function badValue() {
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dlange( value, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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};
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}
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});
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tape( 'the function returns zero if number of rows or columns is zero', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = ONE_NORM_ROW_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, 0, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, 0.0, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the one norm for a given matrix A (row-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = ONE_NORM_ROW_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the one norm for a given matrix A (column-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = ONE_NORM_COLUMN_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the infinity norm for a given matrix A (row-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = INFINITY_NORM_ROW_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the infinity norm for a given matrix A (column-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = INFINITY_NORM_COLUMN_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the frobenius norm for a given matrix A (row-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = FROBENIUS_NORM_ROW_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the frobenius norm for a given matrix A (column-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = FROBENIUS_NORM_COLUMN_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the maximum absolute value for a given matrix A (row-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = MAX_ELEMENT_ROW_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the maximum absolute value for a given matrix A (column-major)', function test( t ) {
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var data;
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var work;
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var out;
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var A;
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data = MAX_ELEMENT_COLUMN_MAJOR;
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A = new Float64Array( data.A );
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work = new Float64Array( data.work );
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out = dlange( data.norm, data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA, work, data.strideWork, data.offsetWork );
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t.strictEqual( out, data.expected, 'returns expected value' );
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t.end();
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});

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