Nothing will be showing on plot
6 views (last 30 days)
Show older comments
% Solve the problem using netwon raphson method
% f(x)=x^10-1
clc;clear
% Start the computation
xo=0.65;
x=xo;
xold=x;
for iteration=1:22
x=xold;
fx =x^10-1;
der_x=10*x^9;
y=fx./der_x;
xnew=x-y;
xold=xnew;
err=abs(xnew-x);
disp([' Iteration number : ' , num2str(iteration) , ' ; The new value of the x is : ' , num2str(xnew), ' ; The error is : ' , num2str(err) ])
plot(iteration,err)
end
0 Comments
Answers (2)
KALYAN ACHARJYA
on 23 Feb 2021
xo=0.65;
x=xo;
xold=x;
iteration=1:22;
err=zeros(1,length(iteration));
for i=1:length(iteration)
x=xold;
fx =x^10-1;
der_x=10*x^9;
y=fx./der_x;
xnew=x-y;
xold=xnew;
err(i)=abs(xnew-x);
disp([' Iteration number : ' , num2str(iteration) , ' ; The new value of the x is : ' , num2str(xnew), ' ; The error is : ' , num2str(err) ])
end
plot(iteration,err);
0 Comments
Rik
on 23 Feb 2021
You are plotting single points, without changing the default (where points are not displayed, only the line connecting them). You are also resetting the plot, as you don't use hold.
You should store the results of your calculation in a vector so you can use that in plot.
0 Comments
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!