Hello, I have a specific difficulty with integration in Sage. I have a
fairly complicated expression in a number of variables, which is
product of simple expressions. To simplify a little we can consider:
sage: var('a,b,c,d,e,f,g,h')
(a, b, c, d, e, f, g, h)
sage: P=(a+b+c+d+e+f+g+h)^8
Now I need to integrate with respect of some of the variables, say a
in the previous example:
sage: integral(P,a,0,1)
The problem is that sage (presumably, maxima?) decides first to
develop the whole expression before integrating. This takes forever.
Of course the "correct" way to do this would rather be to develop only
in terms of a, keeping the rest of the expression as it is. Is there
any way to do this?
Thanks!
Jean-Marc
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