Introduction - If you have any usage issues, please Google them yourself
With recursive orthogonal polynomials law department, that is seeking alpha [j+ 1], beta [j] the entrance of the parameters: m is the data points, n is the number of fitting the most high-end, float x [], float y [ ] is the corresponding vertical and horizontal coordinates, export parameters: a [] is the least-squares fitting parameters, alpha [], beta [] is a recursive coefficient