eig-2.m

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

[v, d] = eig ([1, 2; 2, 1]);
x = 1 / sqrt (2);
(abs (d - [-1, 0; 0, 3] < sqrt (eps))
 && abs (v - [-x, x; x, x] < sqrt (eps)))