problem with integration of gaussian distribution


On Mon, 6 Jul 2009, Riemann, Robert wrote:

< >> What must I do, to let Maxima sort some summands in powers of p?
< >
< >I'm sorry, I don't understand.
< 
< (any function f(p)) => (...)p^0+(...)p^1+(...)p^2+...
< 
< If I know the term (...) in front of p^0, i could substitute it to reduce the 
< number of variables (in my case from 6 to 3)
 
I think that you want to use 'collectterms' to do this work.
Since your integrand is of the form 

q*exp(a*p^2+b*p+c)

it is probably best to determine these coefficients for your problem,
and integrate the above expression, and substitute back. This way, the
functional dependence is pretty clear.

Leo

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