Dear all,

I just learned about GiNaC, and I want to add integration by parts for a bit of complex integration like integral of cos nx * x, for definite and indefinite integral. I think polynomial integration in GiNaC works amazing, but if we can add all other symbolic integration it will be better.

Should I look and modify the source code integral.cpp? I never really modified open source code before in my life.

Thanks.