001
18.01.2007, 19:13 Uhr
~XHatebreedX
Gast
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| C++: |
#include<stdio.h>
#include <ctype.h>
#include <math.h>
double bisektion(double a,double b)
{
double c;
c=(a+b)/2;
return c;
}
double f(double x)
{
double erg;
erg=x*x-2;
return erg;
}
double vorz(double x)
{
if (x<0)
return 0;
else
return 1;
}
double betrag(double a)
{
if(a<0)
{
a=-a;
return a;
}
}
main()
{
double a,b,c,feld[50][4];
int i=0;
printf("erster Intervall");
scanf("%lf",&a);
printf("zweiter Intervall");
scanf("%lf",&b);
printf("Nr. \t c \t a \t b \t a-b \n");
do
{
c=bisektion(a,b);
if(vorz(f(a))==vorz(f(c)))
{
a=c;
}
else
{
b=c;
}
i++;
feld[i][0]=i+1;
feld[i][0]=c;
feld[i][1]=a;
feld[i][2]=b;
feld[i][3]=a-b;
printf("%lf %lf %lf %lf\n",feld[i][0],feld[i][1],feld[i][2],feld[i][3]);
}while(betrag(a-b)>pow(10,-3));
}
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