I need to use some technology to solve a problem, but unfortunately I have no idea which program I could use.
Basically, I just have some data points and need a program which can generate some functions that fit these data points as closely as possible. Possibly (probably) I could also use my TI-84 calculator, but I would prefer a computer program. Can maybe someone recommend me a program that is easy to use (and preferably free/cheap) and that can generate functions if I enter my data? That's all it needs to be able to do!
Thank you very much for your help, and sorry if this question is too easy, but I never really used technology before (except of a calculator) and have no idea which program would be good for that. (Hopefully you can recommend me something other than Excel)