Function rotator

rotator(radx: number, rady?: number, radz?: number): ChalkboardMatrix
Initializes a rotation matrix.
Parameters
- radx: number
  The xy-rotation in radians (for 2D) or the x-rotation in radians (for 3D)
- Optionalrady: number
  The y-rotation in radians (for 3D)
- Optionalradz: number
  The z-rotation in radians (for 3D)
Returns ChalkboardMatrix
Example
```
const result = Chalkboard.matr.rotator(Chalkboard.PI(1 / 2)); // Returns a quarter-turn rotation matrix
```
- Defined in Chalkboard.matr.ts:1833