MATLAB中用C语言编写的S函数，牛顿迭代法-Using C language MATLAB S-function, Newton iteration

用MATLAB编写代码,在经济和金融中法对连续时间过程实现了封闭的最大似然估计方法-The code, written in MATLAB, implements the closed-form maximum-likelihood estimation method for continuous-time processes in economics and finance. First, the code maximizes the log-likelihood function and d