[sympy] issue #7827 understanding.

2014-08-16 Thread Gaurav Dhingra
It's really silly but may i know that " am i supposed to write some code for this issue". I am new to sympy. I have been through the tutorial of sympy http://docs.sympy.org/latest/tutorial/ .. and also suggest some method to solve this paricular issue. -- You received this message because you a

Re: [sympy] issue #7827 understanding.

2014-08-16 Thread Tim Lahey
If you look at summation.py (inside the concrete directory), you'll see that there's an _eval_derivative function. What summation.py needs to evaluate integrals is the corresponding function for integrals, _eval_integral. Look at integrals.py and some of the other classes that implement it. It