Harlan Grove wrote:
"Alan Beban" wrote...

Unless you mean something odd by "invert matrix", there is no such
concept. Mathematically, the inverse of a matrix does not exist for
non-square matrices.


If you don't have a degree in a particular field, there's an outside chance
you don't know what you're talking about.

http://mathworld.wolfram.com/Moore-P...ixInverse.html

You outdo yourself. It's amazing, and amusing, the lengths to which
you'll go to take exception to anything I post.

A matrix inverse is defined such that if B is the inverse of A, then
AB = BA = I, the identity matrix or unit matrix.

A matrix has an inverse if and only if it is nonsingular.

A nonsingular matrix is always a square matrix whose rank is equal to
its order and whose determinant, therefore, is not zero.

Now, which part of that suggests that I don't know what I'm talking
about without a degree in some particular field, and which is
contradicted by any material at the link you provided?

Alan Beban