Z (Integers) <math>\mathbb{Z}</math>
R (Reals) <math> \Bbb{R} </math>
octave:21> A = [2,0,1,1;0,1,0,-1;3,0,-1,-1;4,1,2,1] A =
2 0 1 1 0 1 0 -1 3 0 -1 -1 4 1 2 1
octave:22> B = [5,-1,0,9] B =
5 -1 0 9
octave:23> B/A
f^* := argmax_f \sum_{f \models C_k} log P_k
