Ondrej, Many thanks for your answer!
Yes I need to do a definite integral but I noticed that the exp(poly)
integration is not yet implemented in Sympy and yes I need to
implement it, but I'm an engineer not a mathematician, I would
appreciate your help very much... my function that I need to integrate
is a lot more complex, it is the product of likelihood functions that
have all exponential shape, and the lambda parameter of these
exponentials is a Gaussian expression each... In that Gaussian are 4
parameters which are my integration space (I need to do partial,
definite integration respect to each of them).
It looks like the following:
Integral{[lambda1*exp(-lambda1*c1)]*[lambda2*exp(-
lambda2*c2)]*...*[lambdan*exp(-lambdan*c3)]} dv d(phi) dg dD
in which ci, xi, yi and ti are constants, and each lambda is 1/
Gaussian, with parameters v, phi, g and D:
lambdai=1/{(g/(4.00*pi*D*ti))*(exp(((-(xi-(v*ti*cos(phi)))**2.00)+(-
(yi-(v*ti*sin(phi)))**2.00))/(4.00*D*t)))}
Everything is integrating but the exp() parts are not... could you
please acommodate the patch in the link provided to try solve this? or
please give me hints to try myself...
Thanks!!
Pekeika.
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