Return the Cartesian product.
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> Return the [Cartesian product][cartesian-product].
``bash`
npm install @stdlib/array-cartesian-product
`javascript`
var cartesianProduct = require( '@stdlib/array-cartesian-product' );
#### cartesianProduct( x1, x2 )
Returns the [Cartesian product][cartesian-product].
`javascript
var x1 = [ 1, 2, 3 ];
var x2 = [ 4, 5 ];
var out = cartesianProduct( x1, x2 );
// returns [ [ 1, 4 ], [ 1, 5 ], [ 2, 4 ], [ 2, 5 ], [ 3, 4 ], [ 3, 5 ] ]
`
If provided one or more empty arrays, the function returns an empty array.
`javascript
var x1 = [ 1, 2, 3, 4 ];
var x2 = [];
var out = cartesianProduct( x1, x2 );
// returns []
`
`javascript
var linspace = require( '@stdlib/array-linspace' );
var cartesianProduct = require( '@stdlib/array-cartesian-product' );
var x1 = linspace( 0, 5, 6 );
var x2 = linspace( 10, 15, 6 );
var out = cartesianProduct( x1, x2 );
// returns [ [ 0, 10 ], [ 0, 11 ], ..., [ 5, 14 ], [ 5, 15 ] ]
`
*
- [@stdlib/array-cartesian-power][@stdlib/array/cartesian-power]: return the Cartesian power.
- [@stdlib/array-cartesian-square][@stdlib/array/cartesian-square]: return the Cartesian square.
*
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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---
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Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[cartesian-product]: https://en.wikipedia.org/wiki/Cartesian_product
[@stdlib/array/cartesian-power]: https://www.npmjs.com/package/@stdlib/array-cartesian-power
[@stdlib/array/cartesian-square]: https://www.npmjs.com/package/@stdlib/array-cartesian-square