## square grid with affine transformations
a2.
angleunit(deg)
tile(1,90,1,90,1,90,1,90)
conway("[0 2](1 3)")
# in the direction '0-2', stretch them by 1% and shear them by 50% (note that the direction is mirrored)
stretch_shear(1.5, 0.5, 0, 0)
