Homework Help: math

Posted by sergei on Wednesday, January 7, 2009 at 10:35am.

What does it mean to have two matrix variables written vertically inside parentheses?

In other words, if A and B are matrices, what does this mean (imagine there is one set of parentheses spanning both rows):

(A)
(B)

I'm trying to understand a least squares problem like this:

(A) * C = (D)
(B) (0)

I understand regular least squares problems with matrices, but the parenthesis notation is confusing me.

Thanks!

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