Bisection Method

#include <stdio.h>

double func(double x)
{
    return x*x-4*x-10;
}

int main()
{
    double a, b, c;

    scanf("%lf %lf", &a, &b);

    while(b-a>.0001)
    {
        c = ((a+b)/2);
        if(func(a)*func(c)<0)
            b=c;
        else
            a=c;
    }

    printf("A root of the equation using bisection method is,\nX = %.4lf\n",(a+b)/2.0);

    return 0;
}