Multiplying matrices

Feb 2011
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How do you multiply matrices with:

2 rows and 3 columns
 
Aug 2007
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Same as any other. Why do you ask?
 

Plato

MHF Helper
Aug 2006
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How do you multiply matrices with:
2 rows and 3 columns
Suppose that we have \(\displaystyle A_{2,3}~\&~B_{2,3}\) then it impossible to form \(\displaystyle A\cdot B\).

But \(\displaystyle B^T\), the transpose is a \(\displaystyle 3\times 2\) matrix.
Thus \(\displaystyle A\cdot B^T\) is a \(\displaystyle 2\times 2\) matrix.
 
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Aug 2007
3,171
860
USA
What do you mean the same way as any other? In what pattern?
Well, that would be why I asked, "Why do you ask?" Just trying to make sure we have a good question. If matrices are not conformable, you DON'T multiply them.
 
Last edited:
Feb 2011
72
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Thanks for the reply. I have managed to solve this one.