Linear and Parabolic functions

[uncleBen]

This is a mathematical tool which
1) calculates formula for a linear graph using 2 points, or parabolic graph using 3 points, and
2) finds x-axis intersection points and max/min point for parabolic graph.

I made it a GUI, since I also planned to make it display the graphs graphically, but I left out this feature and now the only "advantage" of GUI is making user input a bit harder.

You must use correct format to input data (spaces!) so you'll need to read the "About" before you can use it.

I made this program because from time to time I need to find linear and parabolic functions and it is quite a pain to do the calculations manually.

(I'm sorry if my English maths terminology is a bit wrong.)

(May-be I should add a short tutorial about how to read the formulas and use them in programs for those that are not good at math?)

[uncleBen]

The zip file contains a html tutorial (with bmps) that demonstrates a way how these functions can be used to create a multi-coloured progress bar.