[0 1] is a 1x2 matrix and [0 10; 10 -1.8] is a 2x2 matrix. Multiplying these together would result in a 1x2 matrix of [10 -1.8]. Multiplying that matrix by the last one would result again in a matrix of 1x2. Which is [-1078.338 364.982] I have it worked out, just waiting for my scanner to start working.