# Function det Calculate the determinant of a matrix. ## Syntax ```js math.det(x) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `x` | Array | Matrix | A matrix ### Returns Type | Description ---- | ----------- number | The determinant of `x` ### Throws Type | Description ---- | ----------- ## 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)