说明：  本程序用共轭梯度法求函数局部极小值。程序包括三个文件，主程序conjugategradient，函数的梯度gradient，以及黄金分割法partition精确求一维搜索极小点变量步长。程序用来求多变量函数的极小值。
(This program conjugate gradient method and function of local minima. The program includes three files, the main conjugategradient function gradient gradient, and the golden section method partition accurate seeking the minimum point of a one-dimensional search variable step. The program is used to seek the minimum of the multi-variable function.)