On Thursday, October 22, 2015 at 4:56:35 PM UTC+3, Filip wrote:
>
> I'm trying to integrate ln(x-y) dy, but the result I get from SymPy is
> very different from Maple's answer.
> Here is what I get when I integrate in SymPy:
> In [2]:
>
> integrate(ln(x-y), y)
>
> Out[2]:
>
> -x*log(-x + y) + y*
Use simplify(diff(-x*log(-x + y) + y*log(x - y) - y,y)) instead of only
diff(-x*log(-x + y) + y*log(x - y) - y,y)
as mentioned by Kalevi sympy does not do the simplification part
autometically.
and in sympy during integration sometimes the constants make a difference.
Hope it helps.
On Thursda
