Re: Maxima digest, Vol 1 #827 - 14 msgs



On Sun, 6 Feb 2005 15:57:48 +0200, Oguz Bayrak  wrote:

> I have couple of 6x6 matrices and as I said the calculations between
> those are very simple(only addition,substraction,multiplication).The
> problem is I can not get the resultant matrix alone.

Your result S1 is of the form  6x6 . (6x1 + 6x6 . 6x6).  There are two
anomalies here.  First, the 6x6 . 6x6 multiplication has not been
carried out.  Perhaps you have set SIMP:FALSE?  Secondly, the
dimensions of the other two operations are not consistent.  You can't
add a 6x1 matrix to a 6x6 matrix (the product of two 6x6 matrices).

Also, your use of variable names like A1, S1, etc. makes me wonder
whether you have also used variable names like C1 and D1 in an older
version of Maxima, where these names are reserved for input/output
lines.

I hope this helps.

        -s

PS Please don't include the full text of a Maxima digest when writing,
and please do use a meaningful subject line for your mail.