mathjs/docs/reference/functions/det.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 det

Calculate the determinant of a matrix.


## Syntax

```js
math.det(x)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | Array &#124; Matrix | A matrix

### Returns

Type | Description
---- | -----------
number | The determinant of `x`


## Examples

```js
math.det([[1, 2], [3, 4]]) // returns -2

const A = [
  [-2, 2, 3],
  [-1, 1, 3],
  [2, 0, -1]
]
math.det(A) // returns 6
```


## See also

[inv](inv.md)