| Author |
Comment/Response |
Peter Pein
|
 10/06/07 07:47am
In Response To 'Re: Re: solve symbolic matrix equation'
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Hi Nikola,
(wrong forum or wrong CAS? ;-))
be sure to multiply the inverse of c "from the correct side" (matrix multiplication is not commutative!).
For example (Mathematica (not Maple) 5.2):
SeedRandom[20071006];
{a,b,c}=Array[Random[]&,{3,3,3}];
d1=Inverse[c].(a-b) (* correct *);
d2=(a-b).Inverse[c] (* faulty *);
a == b+c.#& /@ {d1,d2}
--> {True,False}
Regards,
Peter
URL: , |
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