[Maxima] Commutation with derivatives
gianluca.malato at gmail.com
Fri Jun 18 14:27:29 CDT 2010
I've found a way to make it work.
diff(Tr(x*y),x) ==> Tr(y)
Thanks very much for help.
2010/6/18 Leo Butler <l.butler at ed.ac.uk>
> On Fri, 18 Jun 2010, Gianluca Malato wrote:
> < Hi all! I need to define a function named Tr(x) which is linear and I
> want it
> < to commute with derivative. For example, if I write diff(Tr(f(x)),x) I
> < maxima to perform Tr(diff(f(x),x)). This must be done without using an
> < explicit defintion of the Tr function, but leaving it symbolic. I tried
> < give the command assume(Tr,linear), but it doesn't work fine.
> < Anyone knows how to solve this problem?
> To make Tr commute with diff try:
> should return (un)simplified expressions.
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