?? d4r13.cpp
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#include <iostream.h>
#include <math.h>
#include <iomanip.h>
#include <stdlib.h>
#include <fstream.h>
#include <string>
#include <process.h>
void main()
{
//program d4r13
//driver for routine betai betacf
int i;
char text[20],text1[20];
double nval,a,b,x,value;
const double pi = 3.1415926;
fstream fin;
fin.open("d:\\vc常用數值算法集\\data\\fncval.dat",ios::in);
while ( (strcmp(text,"Incomplete")!=0)||(strcmp(text1,"Beta")!=0) )
{
fin>>text;
if(strcmp(text,"Incomplete")==0)
fin>>text1;
}
fin>>text;
fin>>nval;
cout<<"Incomplete Beta Function "<<endl;
fin>>text;
cout<<endl;
cout<<" a b x actual betai(x)"<<endl;
for( i = 1;i<=nval;i++)
{
fin>>a;
fin>>b;
fin>>x;
fin>>value;
cout<<setprecision(3)<<setw(8)<<a;
cout<<setprecision(3)<<setw(8)<<b;
cout<<setprecision(3)<<setw(8)<<x;
cout<<setprecision(6)<<setw(14)<<value;
cout<<setprecision(6)<<setw(14)<<betai(a, b, x)<<endl;
}
}
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