C program to find value using Bisection Method | C Programming

C program to find value using Bisection Method | C Programming

#include<stdio.h>
#include<conio.h>
#include<math.h>
#define EST 0.05
#define F(x) pow(x,3)-x-3
int main()
{
int i=1;
float xl,xu,xm,f1,f2,f3,error;
printf("Enter the values for xl and xu respectively\n");
scanf("%f%f",&xl,&xu);
printf("Iteration\tXl\t Xu\t f(Xm)\t Error\n");
do
{
xm=(xl+xu)/2;
f1=F(xl);
f2=F(xu);
f3=F(xm);
error=fabs((xl-xu)/xu);
if((f1*f3)<0)
{
xu=xm;
}
else
{
xl=xm;
}
f3=F(xm);
error=fabs((xl-xu)/xu);
printf("%d\t %.4f\t %.4f\t%.4f\t %.4f\n",i,xl,xu,xm,error);
i++; 
}while (error>=EST);

}

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