syl-1.m

GNU Octave is a high-level language, primarily intended for numerical computations. It provides a c

x = syl ([1, 2; 3, 4], [5, 6; 7, 8], [9, 10; 11, 12]);
all (all (abs (x - [-1/2, -2/3; -2/3, -1/2]) < sqrt (eps)))