多项式拟合的，基于徐士良的程序，例子中是以书中的例子，自己改编为f90，当然输入可以从文件中，希望可以对大家有帮助，此外大家应该注意这个拟合出来的多项式和matlab的系数有差别具体看原理-Polynomial fitting, XU Shi-liang of the program, for example, is based on the examples in the book, adapted for f90, of course, from the input file, hope that we can all help, in addition we should note that this fitting out multi-coefficient of the polynomial and matlab a difference to look at specific principle