67 lines
1.5 KiB
JavaScript
67 lines
1.5 KiB
JavaScript
/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 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 Float64Array = require( '@stdlib/array/float64' );
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var Float32Array = require( '@stdlib/array/float32' );
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// MAIN //
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/**
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* Returns the real and imaginary components of a complex number.
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*
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* @param {Complex} z - complex number
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* @returns {(Float64Array|Float32Array)} real and imaginary components
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*
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* @example
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* var Complex128 = require( '@stdlib/complex/float64' );
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*
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* var z = new Complex128( 5.0, 3.0 );
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*
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* var out = reim( z );
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* // returns <Float64Array>[ 5.0, 3.0 ]
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*
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* @example
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* var Complex64 = require( '@stdlib/complex/float32' );
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*
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* var z = new Complex64( 5.0, 3.0 );
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*
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* var out = reim( z );
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* // returns <Float32Array>[ 5.0, 3.0 ]
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*/
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function reim( z ) {
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var out;
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if ( z.BYTES_PER_ELEMENT === 4 ) {
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out = new Float32Array( 2 );
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} else {
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out = new Float64Array( 2 );
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}
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out[ 0 ] = z.re;
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out[ 1 ] = z.im;
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return out;
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}
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// EXPORTS //
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module.exports = reim;
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