Newton Raphson Method Scilab Code

Newton Raphson Method

Code is Here

clear; // Remove clear, clc from code if you want to access existing stored variable from the memory

//example 2.19

//newton-raphson method

//page 41

clc;clear;close

deff('y=f(x)','y=4*exp(-x)*sin(x)-1');//Declaration of Function1

deff('y1=f1(x)','y1=cos(x)*4*exp(-x)-4*exp(-x)*sin(x)');//Declaration of Function2

x0=0.2;// initial value

d=0.0001;//Accuracy

c=0;n=1;

printf('successive iterations \tx0\t        f(x0)\t        f1(x0)\n');

while n==1

    x2=x0;

    x1=x0-(f(x0)/f1(x0));

    x0=x1;

printf('                      \t%f\t%f\t%f\n',x2,f(x1),f1(x1))

c=c+1;

if abs(f(x0))<d then

break;

end

end

printf('the root of %i iteration is:%0.3g',c,x0);