A = [-0.2762, 0.0060, 0.4593; 0.2513, 0.1991, 0.0472; -0.2449, 0.3909, -0.3614] B = [0.4049, -0.3889, 0.0949] C = [-0.3152; -0.0611; -0.0913] x = linsolve(A,B') x = -1.2470 -0.4118 0.1370 A*x ans = 0.4049 -0.3889 0.0949 y = linsolve(A,C) y = 0.2766 -0.5345 -0.5129 A*y ans = -0.3152 -0.0611 -0.0913 cond(A) ans = 2.1396 rcond(A) ans = 0.2140