Don't know where else in Phyiscs Forums or on the internet in general to ask this, and if it's inappropriate here, I apologize. My question is: is there an open source library or resource that I can access from a C++ program to perform symbolic computation on the level of something like Maple or Mathematica? Accessing the Maple or Mathematica engines from my program is unfortunately out of the question. There are numerous small C++ libraries (SymbolicC++, Mathomatic, Ginac, etc.) but they are almost trivial compared to Maple, for example. Thanks for any advice or ideas.