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# Program of BISECTION METHOD

Posted By: Rainhard Fischer     Category: C Programming     Views: 63375

## Code for Program of BISECTION METHOD in C Programming

```#include<stdio.h>
#include <math.h>
#include<conio.h>
#define ESP 0.001
#define F(x) (x)*(x)*(x) + (x)*(x) + (x) + 7
void main()
{
int i = 1;
float x0,x1,x2;
double f1,f2,f0,t;
clrscr();
printf("\nEnter the value of x0: ");
scanf("%f",&x0);

printf("\nEnter the value of x1: ");
scanf("%f",&x1);
printf("\n__________________________________________________________________\n");
printf("\niteration\t x0\t       x1\t x2\t   f0\t   f1\t   f2");
printf("\n___________________________________________________________________\n");
do
{
x2=(x0+x1)/2;
f0=F(x0);
f1=F(x1);
f2=F(x2);
printf("\n%d %f %f %f %lf %lf %lf", i, x0,x1,x2,f0,f1,f2);
if(f0*f2<0)
{
x1=x2;
}
else
{
x0=x2;
}
i++;
}while(fabs(f2)>ESP);
printf("\n__________________________________________________________\n");
printf("\n\nApp.root = %f",x2);
getch();
}

/* OUT PUT---------Enter the value of x0: -2Enter the value of x0: -1Enter the value of x1: -2__________________________________________________________    x0         x1        x2        f0       f1      f2__________________________________________________________-1.000000 -2.000000 -1.500000 -5.000000 2.000000 -1.750000-1.500000 -2.000000 -1.750000 -1.750000 2.000000  0.062500-1.500000 -1.750000 -1.625000 -1.750000 0.062500 -0.859375-1.625000 -1.750000 -1.687500 -0.859375 0.062500 -0.402344-1.687500 -1.750000 -1.718750 -0.402344 0.062500 -0.170898-1.718750 -1.750000 -1.734375 -0.170898 0.062500 -0.054443-1.734375 -1.750000 -1.742188 -0.054443 0.062500  0.003967-1.734375 -1.742188 -1.738281 -0.054443 0.003967 -0.025253-1.738281 -1.742188 -1.740234 -0.025253 0.003967 -0.010647-1.740234 -1.742188 -1.741211 -0.010647 0.003967 -0.003341-1.741211 -1.742188 -1.741699 -0.003341 0.003967  0.000313__________________________________________________________App.root = -1.741699*/```
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 Rainhard Fischer author of Program of BISECTION METHOD is from Frankfurt, Germany. View All Articles

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