// Vector = Vector - Vector
public static Vector <T> Sub <T>(Vector <T> to, Vector <T> from)
{
return(new Vector <T>(
Algebra <T> .Sub(to.X, from.X),
Algebra <T> .Sub(to.Y, from.Y)));
}
// Vector = Point - Point
public static Vector <T> Sub <T>(Point <T> self, Point <T> vec)
{
return(new Vector <T>(
Algebra <T> .Sub(self.X, vec.X),
Algebra <T> .Sub(self.Y, vec.Y)));
}
// Size = Size - Size
public static Size <T> Sub <T>(Size <T> left, Size <T> right)
{
return(new Size <T>(
Algebra <T> .Sub(left.Width, right.Width),
Algebra <T> .Sub(left.Height, right.Height)));
}