该程序实现了非线性最小二乘问题和非线性方程组的解法，且发布的环境是基于BSD的，不同于levmar在GPL环境下编写的程序。移植性提高！-The program achieved a nonlinear least squares problems and the solution of nonlinear equations, and the release of the environment is based on BSD, the GPL is different from the ci