Math/Science symbols, program for writing them

[notmuch]

Hi. I am wondering if there is a program that can do a few things:

1. Plot data points
2. Graph functions
3. Show math symbols (integral, etc) with correct placement of characters

I am attempting to do these things in a lab writeup, so if separate programs are needed I would need to export them into MS. Word or something similar.

Thanks

[Dr Transport]

gnuplot wil do 1 & 2, LateX will do 3. Now if you want to do this in some Microsoft program, try it, Word has an equation editor and Excel will plot both data points and functions.