equation II.1.20

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Alfred
Posts: 7
Joined: Fri Mar 06, 2009 4:13 pm

equation II.1.20

Postby Alfred » Wed Feb 13, 2013 6:03 am

Dear Carol,

I think that equation II.1.20 might be type error. As you mention to reference I.4.4.2 on page 161 of Vol I.
I think that the equation I.4.37 might be the correct one.

regards,
Alfred Wu

coalexander
Posts: 815
Joined: Sun Sep 28, 2008 10:30 pm

Re: equation II.1.20

Postby coalexander » Wed Feb 13, 2013 10:51 pm

Thanks Alfred,

I am going away for 2 weeks now but will check this as soon as I get time on my return.

Many thanks to all diligent readers! Carol

Alfred
Posts: 7
Joined: Fri Mar 06, 2009 4:13 pm

Re: equation II.1.20

Postby Alfred » Thu Feb 14, 2013 2:00 am

Dear Carol,

I think that it should be that X is transpoed, not y .
if X is transpose and y is a vector, the matrix could multiply
successfully.

regards,
Alfred Wu


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