# Function inv Calculate the inverse of a square matrix. ## Syntax ```js math.inv(x) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `x` | number | Complex | Array | Matrix | Matrix to be inversed ### Returns Type | Description ---- | ----------- number | Complex | Array | Matrix | The inverse of `x`. ## Examples ```js math.inv([[1, 2], [3, 4]]) // returns [[-2, 1], [1.5, -0.5]] math.inv(4) // returns 0.25 1 / 4 // returns 0.25 ``` ## See also [det](det.md), [transpose](transpose.md)