//! [0]
x' = m11*x + m21*y + dx
y' = m22*y + m12*x + dy
//! [0]


//! [1]
x' = m11*x + m21*y + dx
y' = m22*y + m12*x + dy
//! [1]


//! [2]
x' = m11*x + m21*y + dx
y' = m22*y + m12*x + dy
//! [2]


//! [3]
x' = m11*x + m21*y + dx
y' = m22*y + m12*x + dy
//! [3]