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13:10 <Deathmetalman> how do i enter an ordinary fraction?
13:13 <gabkdlly> Deathmetalman: 2/5;
13:13 <Deathmetalman> A:matrix([1/2,3/4][5/6,7/8]);
13:14 <Deathmetalman> Wrong number of indices:
13:14 <Deathmetalman> is what it says
13:14 <Deathmetalman> a coma!
13:14 <Deathmetalman> lol
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15:28 <Deathmetalman> how do I multiply two square matrices A and B?
15:30 <Deathmetalman> A . B doesn't work!
16:02 <Deathmetalman> anyone...
16:14 <faroe>  Deathmetalman: A * B ?
16:14 <Deathmetalman> how come?
16:14 <Deathmetalman> the period is used fro matrix maltiplication
16:15 <Deathmetalman> it just prints them both but doesnt give an asnwer
16:21 <faroe> Deathmetalman: what result are you expecting?
16:22 <Deathmetalman> a third matrix which is the result of the A*B product
16:23 <faroe> Deathmetalman: e.g. using A : matrix([a,b],[c,d]) and B : matrix([e,f],[g,h]), what result do you expect?
16:24 <Deathmetalman> the matrix C([a*e+b*g,...],[...,...])
16:25 <faroe> Deathmetalman: so AFAICS you want matrix multiplication and not the dot product
16:25 <Deathmetalman> yes
16:25 <faroe> Deathmetalman: http://en.wikipedia.org/wiki/Matrix_multiplication vs. http://en.wikipedia.org/wiki/Dot_product
16:26 <Deathmetalman> how can one calcualte a dot product of two matrices ?
16:26 <Deathmetalman> I know what they are
16:26 <Deathmetalman> I also know that A . B is the matrix multiplication in Maxima
16:26 <Deathmetalman> A*B is the multiplication of numbers not matrices
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17:33 <HaraldG> Deathmetalman: A.B works for me. Did you load the "vect" package?
17:34 <HaraldG> Which version of maxima are you using?
18:09 <Deathmetalman> it goes alright now
18:10 <Deathmetalman> not always though
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