Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* @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 base = require( './base.js' );
// MAIN //
/**
* Copies the upper triangular part of a matrix `A` to another matrix `B` using alternative indexing semantics.
*
* @param {NonNegativeInteger} M - number of rows in matrix `A`
* @param {NonNegativeInteger} N - number of columns in matrix `A`
* @param {integer} k - diagonal below which to ignore
* @param {Collection} A - input matrix
* @param {integer} strideA1 - stride of the first dimension of `A`
* @param {integer} strideA2 - stride of the second dimension of `A`
* @param {NonNegativeInteger} offsetA - starting index for `A`
* @param {Collection} B - output matrix
* @param {integer} strideB1 - stride of the first dimension of `B`
* @param {integer} strideB2 - stride of the second dimension of `B`
* @param {NonNegativeInteger} offsetB - starting index for `B`
* @returns {Collection} `B`
*
* @example
* var A = [ 1.0, 2.0, 3.0, 4.0 ];
* var B = [ 0.0, 0.0, 0.0, 0.0 ];
*
* gtriu( 2, 2, 0, A, 2, 1, 0, B, 2, 1, 0 );
* // B => [ 1.0, 2.0, 0.0, 4.0 ]
*
* @example
* var A = [ 1.0, 2.0, 3.0, 4.0 ];
* var B = [ 0.0, 0.0, 0.0, 0.0 ];
*
* gtriu( 2, 2, -1, A, 2, 1, 0, B, 2, 1, 0 );
* // B => [ 1.0, 2.0, 3.0, 4.0 ]
*/
function gtriu( M, N, k, A, strideA1, strideA2, offsetA, B, strideB1, strideB2, offsetB ) { // eslint-disable-line max-len, max-params
return base( M, N, k, A, strideA1, strideA2, offsetA, B, strideB1, strideB2, offsetB ); // eslint-disable-line max-len
}
// EXPORTS //
module.exports = gtriu;
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