# matrix proc

Source: https://ref.dm-lang.org/proc/matrix
Added in BYOND 500.

### Format
- `matrix()`
- `matrix(Matrix)`
- `matrix(a, b, c, d, e, f)`
- `matrix(x, y, MATRIX_SCALE)`
- `matrix(n, MATRIX_SCALE)`
- `matrix(angle, MATRIX_ROTATE)`
- `matrix(x, y, MATRIX_TRANSLATE)`


### Returns
> A new matrix.

### Args
- `Matrix`: a matrix to copy
- `a - f`: The individual matrix components (in column-major order)
- `x, y`: Arguments affecting how the shortcut matrix format affects x and y
- `n`: The same value used for x and y together
- `angle`: Rotation angle in degrees, clockwise


If no arguments are provided, a new default (identity) matrix is created.

There are also several "shortcut" matrix calls that can be made:

- **matrix(x, y, MATRIX_SCALE)**: A scaling matrix, scaling either x and y independently or both together
- **matrix(n, MATRIX_SCALE)**: A matrix that rotates by the angle in degrees, clockwise
- **matrix(angle, MATRIX_ROTATE)**: A matrix that translates by x and y

### See also
- [matrix](https://ref.dm-lang.org/matrix/index.md)
- [transform var (atom)](https://ref.dm-lang.org/atom/var/transform.md)