s_1 = (1, 1)
s_2 = (-1, 1)
A = Intersect(xAxis, yAxis)
B = Point(xAxis)
i = Vector(A, B)
C = Point(yAxis)
j = Vector(A, C)
v = (2, 1)
w = Vector(A, v)
F: {{x(s_1), x(s_2)}, {y(s_1), y(s_2)}}
fv = ApplyMatrix(F, v)
z = Vector(A, fv)