Why isn't this positive?

1. Nov 21, 2014

2. Nov 21, 2014

Stephen Tashi

I haven't read the links, but zero is not greater than zero. So why would a matrix containing a zero be "positive"?

Last edited: Nov 21, 2014
3. Nov 21, 2014

Staff: Mentor

From the wiki page,
Nonnegative isn't the same thing as positive.

4. Nov 21, 2014