BFGS算法C程序本程序适用于2设计变量的函数优化问题，对于不同的设计变量个数可以改变维数,对于DFP算法只需修改校正矩阵即可。对于BFGS算法的C++程序与之类似。-BFGS algorithm for C programs for 2 of the program design variable function optimization problem, the number of design variables for the different dimensions can be changed, for the DFP algorithm can only modify the calibration matrix. BFGS algorithm for C++ program is similar.