where the square matrix of constants in the middle determines the transformation.
The algebraic form is recreated by taking the top variable x
,
introducing the = sign, and multiplying the top row of constants [a b] individually
by the last column vector containing x and y. We then examine
the second variable y
, introduce the = sign, and multiply the bottom row of
constants [c d] individually by the last column vector containing x and y, to
create