12max10.c

来自「很多算法的详细C语言编程 很方便学计算方法的参考」· C语言 代码 · 共 25 行

  #include "stdio.h"
  #include "12max1.c"
  main()
  { int js[2];
    void  max1f(double,double []);
    double eps, x[2];
    eps=1.0e-10; x[0]=1.0;
    max1(x,eps,10,js,max1f);
    printf("\n");
    printf("js(0)=%3d\n",js[0]);
    if (js[1]<0) printf("MIN:  ");
    else printf("MAX:  ");
    printf("x=%e  f(x)=%e  \n",x[0],x[1]);
    printf("\n");
  }

  void max1f(x,y)
  double x,y[2];
  { y[0]=(x-1.0)*(10.0-x);
    y[1]=-2.0*x+11.0;
    return;
  }