/* Method of Bisection
Equation: x^3-4x-9=0*/
#include<stdio.h>
#include<math.h>
void main()
{
float a,b,k,m;
float f(float);
printf("\nEnter first initial value:: ");
scanf("%f",&a);
printf("\nEnter second initial value:: ");
scanf("%f",&b);
while(fabs(a-b)>0.00001)
{
m=(a+b)/2;
k=f(m);
if(k>0)
b=m;
else
a=m;
}
printf("\nRoot is:: %f",m);
}
float f(float x)
{
return (x*x*x)-(4*x)-9;
}
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