public Mat22 Mul(Mat22 r)
{
/*
* Mat22 C = new Mat22();C.set(this.mul(R.ex), this.mul(R.ey));return C;
*/
Mat22 C = new Mat22();
C.Ex.X = Ex.X * r.Ex.X + Ey.X * r.Ex.Y;
C.Ex.Y = Ex.Y * r.Ex.X + Ey.Y * r.Ex.Y;
C.Ey.X = Ex.X * r.Ey.X + Ey.X * r.Ey.Y;
C.Ey.Y = Ex.Y * r.Ey.X + Ey.Y * r.Ey.Y;
// C.set(ex,col2);
return C;
}
