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Reinterpret a double-precision complex floating-point ndarray as a real-valued double-precision floating-point ndarray containing interleaved real and imaginary components.
npm install @stdlib/ndarray-base-reinterpret-complex128Alternatively,
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var reinterpretComplex128 = require( '@stdlib/ndarray-base-reinterpret-complex128' );Reinterprets a double-precision complex floating-point ndarray as a real-valued double-precision floating-point ndarray containing interleaved real and imaginary components.
var ones = require( '@stdlib/ndarray-base-ones' );
var x = ones( 'complex128', [ 2, 2 ], 'row-major' );
// returns <ndarray>[ [ <Complex128>[ 1.0, 0.0 ], <Complex128>[ 1.0, 0.0 ] ], [ <Complex128>[ 1.0, 0.0 ], <Complex128>[ 1.0, 0.0 ] ] ]
var out = reinterpretComplex128( x );
// returns <ndarray>[ [ [ 1.0, 0.0 ], [ 1.0, 0.0 ] ], [ [ 1.0, 0.0 ], [ 1.0, 0.0 ] ] ]- The returned ndarray is a view on the input ndarray data buffer.
- The returned ndarray has an additional trailing dimension of size two whose elements correspond to the real and imaginary components, respectively, of each complex-valued element in the input ndarray.
- The returned ndarray is a "base" ndarray, and, thus, the returned ndarray does not perform bounds checking or afford any of the guarantees of the non-base ndarray constructor. The primary intent of this function is to reinterpret an ndarray-like object within internal implementations and to do so with minimal overhead.
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var Complex128Array = require( '@stdlib/array-complex128' );
var ndarray = require( '@stdlib/ndarray-base-ctor' );
var ndarray2array = require( '@stdlib/ndarray-to-array' );
var reinterpretComplex128 = require( '@stdlib/ndarray-base-reinterpret-complex128' );
// Create a double-precision complex floating-point ndarray:
var buf = new Complex128Array( discreteUniform( 8, -5, 5 ) );
var x = ndarray( 'complex128', buf, [ 2, 2 ], [ 2, 1 ], 0, 'row-major' );
// Reinterpret as a double-precision floating-point ndarray:
var out = reinterpretComplex128( x );
console.log( ndarray2array( out ) );This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
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