npm package: @stdlib/array-base-broadcasted-binary3d
Description: Apply a binary callback to elements in two broadcasted input arrays and assign results to elements in a three-dimensional nested output array.
Author: The Stdlib Authors
Latest version: 0.2.3

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# bbinary3d

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Apply a binary callback to elements in two [broadcasted][@stdlib/array/base/broadcast-array] nested input arrays and assign results to elements in a three-dimensional nested output array.

<section class="intro">

</section>

<!-- /.intro -->

<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-broadcasted-binary3d
```

</section>

<section class="usage">

## Usage

```javascript
var bbinary3d = require( '@stdlib/array-base-broadcasted-binary3d' );
```

#### bbinary3d( arrays, shapes, fcn )

Applies a binary callback to elements in two [broadcasted][@stdlib/array/base/broadcast-array] nested input arrays and assigns results to elements in a three-dimensional nested output array.

```javascript
var zeros3d = require( '@stdlib/array-base-zeros3d' );
var add = require( '@stdlib/number-float64-base-add' );

var x = [ [ 1.0, 2.0 ] ];
var y = [ [ 3.0 ], [ 4.0 ] ];
var z = zeros3d( [ 2, 2, 2 ] );

var shapes = [
    [ 1, 2 ],
    [ 2, 1 ],
    [ 2, 2, 2 ]
];

bbinary3d( [ x, y, z ], shapes, add );
// z => [ [ [ 4.0, 5.0 ], [ 5.0, 6.0 ] ], [ [ 4.0, 5.0 ], [ 5.0, 6.0 ] ] ]
```

The function accepts the following arguments:

-   **arrays**: array-like object containing two input nested arrays and one output nested array.
-   **shapes**: array shapes.
-   **fcn**: binary function to apply.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   The input and output array shapes must be broadcast [compatible][@stdlib/ndarray/base/broadcast-shapes].

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' ).factory;
var filled3dBy = require( '@stdlib/array-base-filled3d-by' );
var zeros3d = require( '@stdlib/array-base-zeros3d' );
var add = require( '@stdlib/number-float64-base-add' );
var bbinary3d = require( '@stdlib/array-base-broadcasted-binary3d' );

var shapes = [
    [ 1, 1, 3 ],
    [ 3, 1, 1 ],
    [ 3, 3, 3 ]
];

var x = filled3dBy( shapes[ 0 ], discreteUniform( -100, 100 ) );
console.log( x );

var y = filled3dBy( shapes[ 1 ], discreteUniform( -100, 100 ) );
console.log( y );

var z = zeros3d( shapes[ 2 ] );
console.log( z );

bbinary3d( [ x, y, z ], shapes, add );
console.log( z );
```

</section>

<!-- /.examples -->

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</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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[@stdlib/array/base/broadcast-array]: https://www.npmjs.com/package/@stdlib/array-base-broadcast-array

[@stdlib/ndarray/base/broadcast-shapes]: https://www.npmjs.com/package/@stdlib/ndarray-base-broadcast-shapes

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