public static Matrix2x2f PolarDecomposition(Matrix2x2f m)
{
Matrix2x2f q = m + new Matrix2x2f(m.m11, -m.m10, -m.m01, m.m00);
Vector2f c0 = q.GetColumn(0);
Vector2f c1 = q.GetColumn(1);
float s = c0.Magnitude;
q.SetColumn(0, c0 / s);
q.SetColumn(1, c1 / s);
return(q);
}
public static Matrix2x2f QRDecomposition(Matrix2x2f m)
{
Vector2f a = m.GetColumn(0).Normalized;
Matrix2x2f q = new Matrix2x2f();
q.SetColumn(0, a);
q.SetColumn(1, a.PerpendicularCCW);
return(q);
}
