fuzzy-simulation-1.cpp

清华大学不确定规划教材中的模糊模拟算法1

// Fuzzy Simulation
// Written by Microsoft Visual C++
// Copyright by UTLab @ Tsinghua University
// http://orsc.edu.cn/UTLab

#include <iostream.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "UTLab.h"
#define N 3000

int main(void)
{
  int    i;
  double a1,a2,f1,f2,q,f=0,g=0;

  for(i=1; i<=N; i++)  {
    a1=myu(0,2);
    a2=myu(1,3);
    f1=exp(-(a1-1)*(a1-1));
    f2=exp(-(a2-2)*(a2-2));

    if(f2>f1)
     q=f1;
    else
     q=f2;

    if(a1<=a2) {
      if(q>f)
         f=q;
	}
    else {
	  if(q>g)
         g=q;
	}
  }
 
  printf("The credibility is %f\n",(f+1-g)/2);
  return 1;
}