Function copy

copy(out: mat2d.Mat2d, a: mat2d.Mat2d): mat2d.Mat2d
Copy the values from one mat2d to another
Parameters
- out: mat2d.Mat2d
  the receiving matrix
- a: mat2d.Mat2d
  the source matrix
Returns mat2d.Mat2d
out
- Defined in core/mat2d.ts:33