@stdlib/strided
Version:
Strided.
74 lines (64 loc) • 2.19 kB
JavaScript
/**
* @license Apache-2.0
*
* Copyright (c) 2021 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 stride2offset = require( './../../../base/stride2offset' );
var ndarray = require( './ndarray.js' );
// MAIN //
/**
* Applies a unary function to a single-precision complex floating-point strided input array and assigns results to a single-precision complex floating-point strided output array.
*
* @param {NonNegativeInteger} N - number of indexed elements
* @param {Complex64Array} x - input array
* @param {integer} strideX - `x` stride length
* @param {Complex64Array} y - destination array
* @param {integer} strideY - `y` stride length
* @param {Function} fcn - unary function to apply
* @returns {Complex64Array} `y`
*
* @example
* var Complex64Array = require( '@stdlib/array/complex64' );
* var real = require( '@stdlib/complex/float64/real' );
* var imag = require( '@stdlib/complex/float64/imag' );
* var Complex64 = require( '@stdlib/complex/float32/ctor' );
*
* function scale( x ) {
* var re = real( x );
* var im = imag( x );
* return new Complex64( re*10.0, im*10.0 );
* }
*
* var x = new Complex64Array( [ 1.0, 1.0, 2.0, 2.0, 3.0, 3.0, 4.0, 4.0, 5.0, 5.0 ] );
* var y = new Complex64Array( x.length );
*
* cmap( x.length, x, 1, y, 1, scale );
*
* var v = y.get( 0 );
* // returns <Complex64>
*
* var re = real( v );
* // returns 10.0
*
* var im = imag( v );
* // returns 10.0
*/
function cmap( N, x, strideX, y, strideY, fcn ) {
return ndarray( N, x, strideX, stride2offset( N, strideX ), y, strideY, stride2offset( N, strideY ), fcn ); // eslint-disable-line max-len
}
// EXPORTS //
module.exports = cmap;