C Program for "Newton Raphson" method ( To find out the root of the equation)

#include

#include

#define epsilon 1e-6

main()

{

/*This is a programm based on modified

newton raphson method to

find out root of the equation x^3-5*x^2+7*x-3=0*/

double g,g1,v,v1,v2,x,dx;

int converged=0,i;

printf("plz enter the guess value\n");

scanf("%lf",&g1);

printf("%lf",g1);

i=1;

printf("\n iteration no=%d\n",i);

v=g1*g1*g1-5*g1*g1+7*g1-3;

printf("v=%lf\n",v);

v1=3*g1*g1-10*g1+7;

printf("v1=%lf\n",v1);

v2=6*g1-10;

printf("v2=%lf\n",v2);

x=(v*v1)/(v1*v1-v*v2);

printf("value=%lf\n",x);

g=g1-((v*v1)/(v1*v1-v*v2));

printf("new guess is=%lf\n",g);

dx=((g-g1)/g);

printf("error=%lf\n",dx);

g1=g;

printf("the root of equation is=%lf i=%d\n",g,i);

i=i+1;

}