code: public Vector3f reflect(float x, float y, float z) {
          return reflect(x, y, z, thisOrNew());
      }
docs: Reflect this vector about the given normal vector.
  
  @param x
  the x component of the normal
  @param y
  the y component of the normal
  @param z
  the z component of the normal
  @return a vector holding the result