Function rotate

rotate<T>(a, b, rad, dst?): T
Rotate a 2D vector
Type Parameters
- T extends BaseArgType = Float64Array
Parameters
- a: BaseArgType
  The vec2 point to rotate
- b: BaseArgType
  The origin of the rotation
- rad: number
  The angle of rotation in radians
- Optional dst: T
Returns T
the rotated vector