This might be a good one to throw at Mathematica. It's now possible to utilize Mathematica solutions using a free player. For examples of the capabilities go to Wolfram's website and take a look at the demonstrations project. See http://wolfram.com/ and http://demonstrations.wolfram.com/ . I would be amenable to collaborating on building demonstrations for public consumption.

Jim

Quote Originally Posted by ic-racer View Post
I have always been frustrated by the fact that I am sitting in front of a reasonably powerful computer, yet making it solve a dataset for 0.3 G (fractional gradient method) has proven cumbersome for me. I had software that would give me something like a 3rd or 4th order polynomial for the film curve but it was difficult to solve (with Excel spreadsheet) just for 0.1 above film base, let alone try to get it to find the intersection of 0.3xG and the toe! Did you ever play with this and get an easy way to just plug in the (x,y) dataset and have a program or spread sheet spit out the speed based on the 0.3*G, fractional gradient method?