After a fair bit of work my Online Polynomial Regression Calculator
I am not sure how much demand there will be for such an interface, but I have seen search requests for online polynomial regression. So this should satisfy those requests.
My Polynomial Regression Class uses arbitrary precision arithmetic, which is more CPU intensive than conventional floating-point arithmetic. As such, I had to limit the interface to a maximum of 1,000 data points, and no greater than 9 coefficients. I figure anyone wanting to analyze more data than this, or needing more coefficients can either find an other tool to work with or download the libraries and run the analysis on their own machine.
In working with the CSS I discovered that input check boxes are rather complicated. The border settings that work for other inputs do not apply to check boxes, and one needs to draw a graphic if they are to be customized. So I started with a template I found online and drew my own just for practice. It looks good and works like I want, but I was hopping that with all the crazy stuff that can be done with CSS3 check boxes would have had a little more configuration available. Should I want to change the theme of this page, I would have to go back and change the graphics. Maybe in the future they will add more for check boxes.