public void NonhomogeneousInverse()
{
FMat2 m3 = this;
m3.Invert();
this.x = m3.x;
this.y = m3.y;
FVec3 v = m3 * this.z;
this.z.x = -v.x;
this.z.y = -v.y;
}
public static FMat3 NonhomogeneousInverse(FMat3 m)
{
FMat2 m2 = m;
m2.Invert();
FMat3 o = m2;
FVec3 v = m2 * m.z;
o.z.x = -v.x;
o.z.y = -v.y;
return(o);
}