mathjs/docs/reference/functions/reshape.md

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

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# Function reshape

Reshape a multi dimensional array to fit the specified dimensions


## Syntax

```js
math.reshape(x, sizes)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | Array &#124; Matrix &#124; * | Matrix to be reshaped
`sizes` | number[] | One dimensional array with integral sizes for each dimension. One -1 is allowed as wildcard, which calculates this dimension automatically.

### Returns

Type | Description
---- | -----------
* &#124; Array &#124; Matrix | A reshaped clone of matrix `x`


## Examples

```js
 math.reshape([1, 2, 3, 4, 5, 6], [2, 3])
 // returns Array  [[1, 2, 3], [4, 5, 6]]

 math.reshape([[1, 2], [3, 4]], [1, 4])
 // returns Array  [[1, 2, 3, 4]]

 math.reshape([[1, 2], [3, 4]], [4])
 // returns Array [1, 2, 3, 4]

 const x = math.matrix([1, 2, 3, 4, 5, 6, 7, 8])
 math.reshape(x, [2, 2, 2])
 // returns Matrix [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]

math.reshape([1, 2, 3, 4], [-1, 2])
// returns Matrix [[1, 2], [3, 4]]
```


## See also

[size](size.md),
[squeeze](squeeze.md),
[resize](resize.md)