* Kamaraju Kusumanchi <kamaraju@gmail.com> [2005-08-07 21:51:02 -0400]:
> (%i1) f(x,r) := exp(-x*x+r);
>
> (%o1) f(x, r) := EXP((- x) x + r)
> (%i2) ratsimp( diff( f(x,r), x, 2) );
>
> 2
> r 2 r - x
> (%o2) (4 %E x - 2 %E ) %E
>
>
> But in (%o2) it could have factored out 2 * exp(r-x*x) instead of just
> exp(-x*x). How can I tell maxima to factor out these common factors also?
>
Perhaps. factor(diff(f(x,r),x,2)) ?
Milan
> thanks
> raju
>
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