npm package: @stdlib/strided-base-reinterpret-complex
Description: Reinterpret a complex-valued floating-point array as a real-valued floating-point array having the same precision.
Author: The Stdlib Authors
Latest version: 0.1.3

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# reinterpret

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> Reinterpret a complex-valued floating-point array as a real-valued floating-point array having the same precision.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/strided-base-reinterpret-complex
```

</section>

<section class="usage">

## Usage

```javascript
var reinterpret = require( '@stdlib/strided-base-reinterpret-complex' );
```

#### reinterpret( x, offset )

Returns a real-valued floating-point array view of a complex-valued floating-point array.

```javascript
var Complex128Array = require( '@stdlib/array-complex128' );

var x = new Complex128Array( 10 );

var view = reinterpret( x, 0 );
// returns <Float64Array>

var bool = ( view.buffer === x.buffer );
// returns true

var len = view.length;
// returns 20
```

The `offset` argument specifies the starting index of the returned real-valued floating-point array view relative to the input array.

```javascript
var Complex64Array = require( '@stdlib/array-complex64' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

var view = reinterpret( x, 2 );
// returns <Float32Array>

var len = view.length;
// returns 4

var re = view[ 0 ];
// returns 5.0

var im = view[ 1 ];
// returns 6.0
```

</section>

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</section>

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<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var Complex128Array = require( '@stdlib/array-complex128' );
var real = require( '@stdlib/complex-float64-real' );
var imag = require( '@stdlib/complex-float64-imag' );
var reinterpret = require( '@stdlib/strided-base-reinterpret-complex' );

// Define a complex number array:
var x = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
// returns <Complex128Array>

// Reinterpret as a `float64` array:
var view = reinterpret( x, 0 );
// returns <Float64Array>

// Set view elements:
view[ 0 ] = 9.0;
view[ 1 ] = 10.0;

// Get the first element of the complex number array:
var z = x.get( 0 );
// returns <Complex128>

var re = real( z );
// returns 9.0

var im = imag( z );
// returns 10.0
```

</section>

<!-- /.examples -->

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* * *

## See Also

-   <span class="package-name">[`@stdlib/strided-base/reinterpret-complex128`][@stdlib/strided/base/reinterpret-complex128]</span><span class="delimiter">: </span><span class="description">reinterpret a Complex128Array as a Float64Array.</span>
-   <span class="package-name">[`@stdlib/strided-base/reinterpret-complex64`][@stdlib/strided/base/reinterpret-complex64]</span><span class="delimiter">: </span><span class="description">reinterpret a Complex64Array as a Float32Array.</span>

</section>

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* * *

## Notice

This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].

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---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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