C语言:powell（鲍威尔）法；

#include #include #define m 10 /*数组长度m >= 维数n */ float f(float x[]); void mjtf(int n,float x0[],float h,float s[],float a[],float b[]); void mhjfgf(int n,float a[],float b[],float flag,float x[]); void mbwef(int n,float x0[],float h,float flag,float a[],float b[],float x[]); float f(float x[]) { float result; result=(x[0]-2)*(x[0]-2)+(x[1]-3)*(x[1]-3)+(x[2]-4)*(x[2]-4); return result; } /*多维进退法子程序*/ void mjtf(int n,float x0[],float h,float s[],float a[],float b[]) { int i; float x1[m],x2[m],x3[m],f1,f2,f3; for(i=0;i