Recent content by emontag

I hope I'm not being nit-picky but matrix algebra isn't my strong suit. Shouldn't the order of the terms on the right side of the equation be switched? [a b c]T = [X]-1[y1 y2 y3]T

If the first point (x1,y1) is (0,y1), then I believe that c = y. But the equation above gives c=0. Where am I going wrong?