![Implement Newton-Raphson Method using C Implement Newton-Raphson Method using C,Sumit Kar, Numerical Methods, C, Timus Rak](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgEEuiVQujzDYGlv1PMDzDKYb5ozvCbIjo_Mt3FOu_A8h6GVex9UkCglRQEuc0wTKxbm_OgzCSMsAl0xTsTrdYwnZVmL3fFis99MAlE7B7SZTE3u-l8-Yoy14a7zhjLCMXS_y2grkLeaBz/s1600/c-programming-tutorial.jpg)
/*
Method of Newton-Raphson
Equation: x^3-4x-9=0
*/
#include<stdio.h>
void main()
{
float a,h;
int i;
float f(float);
float f1(float);
printf("\nEnter initial value:: ");
scanf("%f",&a);
for(i=1;i<=5;i++)
{
h=-f(a)/f1(a);
a=a+h;
}
printf("\nRoot is:: %f",a);
}
float f(float x)
{
return (x*x*x)-(4*x)-9;
}
float f1(float x)
{
return (3*x*x)-4;
}
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