问题
I am trying to implement a graphing calculator on the iPhone. I am looking for a library that can take strings of expressions or functions and let me manipulate them (find derivatives, intercepts, zeros, etc). Does anything like this exist?
回答1:
There's GiNaC for C++. GPL-licensed and actively maintained, last update only a month ago. I found old links to many others that don't seem to exist anymore; perhaps people simply found it easier to use GiNaC?
来源：https://stackoverflow.com/questions/7210417/symbolic-math-library-in-c-c-obj-c