What is a non diagonal matrix?

Question

Is it something like the diagonal elements are zeroes and the off diagonal elements may or may not be zeroes?

No, it just means a matrix that is not diagonal! – almagest Jun 12 '16 at 09:20 — almagest, Jun 12 '16 at 09:20

score 5 · Accepted Answer · answered Jun 12 '16 at 09:18

5

At least one of the off-diagonal entries is non-zero. You don't have to check the diagonal entries.

answered Jun 12 '16 at 09:18

1 Answers1