Creates a matrix and optionally initializes its affine transformation
to the coefficients specified by xx, yx, xy, yy, x0, y0. Omitted
coefficients will be set to 0.
Inputs
xx
optional: xx component of the affine transformation (defaults to 0)
yx
optional: yx component of the affine transformation (defaults to 0)
xy
optional: xy component of the affine transformation (defaults to 0)
yy
optional: yy component of the affine transformation (defaults to 0)
x0
optional: X translation component of the affine transformation (defaults to 0)
y0
optional: Y translation component of the affine transformation (defaults to 0)