This program determines and displays polynomials (1st order through 6th order) that fit (x,y) data in the least squares sense. Up to 1000 data points may be entered. The drawing rectangle encompasses the entire range of the input data, and is re-scaled and re-drawn every time a data point is added or altered. Seeing is believing in curve fitting. Just download and run LSSetup.EXE, and then run the program (LeastSquare.EXE). Help->Operation explains how it works. We offer it free, as a public service.
Download Least Squares Program