I am trying to graph some functions but I am not sure about if it is possible using C/C++ I use some numerical metods trying to interpolate data of much complex functions and get the graph (for example the Riemman Dseta function). But I am not even sure If there does exist one specific header or something like that that may help me. Or if necesary how to export data or run other aplication (Excel, in case) that could help me usinng the c++. (That the c++ executable file opened excel and send data to make the graph) I am quite confused about it. Thanks a lot!