npm package: @stdlib/array-base-linspace2d
Description: Generate a linearly spaced two-dimensional nested numeric array.
Author: The Stdlib Authors
Latest version: 0.1.1

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# linspace2d

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

> Generate a linearly spaced two-dimensional nested numeric array.

<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-linspace2d
```

</section>

<section class="usage">

## Usage

```javascript
var linspace2d = require( '@stdlib/array-base-linspace2d' );
```

#### linspace2d( start, stop, shape, colexicographic )

Generates a linearly spaced two-dimensional nested numeric array.

```javascript
var x = linspace2d( 0, 100, [ 2, 3 ], false );
// returns [ [ 0, 20, 40 ], [ 60, 80, 100 ] ]

x = linspace2d( 0, 100, [ 2, 3 ], true );
// returns [ [ 0, 40, 80 ], [ 20, 60, 100 ] ]
```

The function accepts the following arguments:

-   **start**: first array value.
-   **stop**: last array value.
-   **shape**: array shape.
-   **colexicographic**: specifies whether generated array values should be stored in colexicographic order.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   The output array is guaranteed to include the `start` and `stop` values. Beware, however, that values between `start` and `stop` are subject to floating-point rounding errors. Hence,

    ```javascript
    var arr = linspace2d( 0, 1, [ 1, 3 ], false );
    // returns [ [ 0, ~0.5, 1 ] ]
    ```

    where `arr[0][1]` is only guaranteed to be approximately equal to `0.5`. If you desire more control over element precision, consider using [`roundn`][@stdlib/math/base/special/roundn]:

    ```javascript
    var roundn = require( '@stdlib/math-base-special-roundn' );
    var map2d = require( '@stdlib/array-base-map2d' );

    var arr = linspace2d( 0, 1, [ 1, 3 ], false );
    // returns [ [ 0, ~0.5, 1 ] ]

    // Round each value to the nearest tenth:
    var out = map2d( arr, [ 1, 3 ], clbk );
    // returns [ [ 0, 0.5, 1 ] ]

    function clbk( v ) {
        return roundn( v, -1 );
    }
    ```

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var linspace2d = require( '@stdlib/array-base-linspace2d' );

var out = linspace2d( 0, 10, [ 2, 5 ], false );
console.log( out );

out = linspace2d( 0, 10, [ 2, 3 ], true );
console.log( out );

out = linspace2d( 0, 10, [ 4, 2 ], true );
console.log( out );

// Create an array of arrays with decremented values:
out = linspace2d( 10, 0, [ 2, 5 ], false );
console.log( out );
```

</section>

<!-- /.examples -->

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<section class="related">

</section>

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<section class="main-repo" >

* * *

## 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].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

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

</section>

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[umd]: https://github.com/umdjs/umd
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[@stdlib/math/base/special/roundn]: https://www.npmjs.com/package/@stdlib/math-base-special-roundn

</section>

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