How to plot x(n) for many values of n?
29 views (last 30 days)
Show older comments
How to plot 𝑥(𝑛) = 𝛼𝑛 𝑥(0) for n=1-30 and x(0)=100?? I have tried this code, but it is repeating it's value again and again... What I am missing?
alpha = 2
x0 = 100; % Initial conditions
for n = 1:30
x(n) = (alpha^n)*(x0)
end
disp(x(n))
0 Comments
Accepted Answer
madhan ravi
on 6 Jun 2020
Edited: madhan ravi
on 6 Jun 2020
Shorter code eliminating loop:
Alpha = 2
x0 = 100; % Initial conditions
n = 1:30;
x = Alpha.^n*x0;
plot(n,x)
Note: You were doing it correctly all you had to use was disp(x)
9 Comments
madhan ravi
on 6 Jun 2020
Edited: madhan ravi
on 6 Jun 2020
Man... what do you want to do? Did you read https://www.mathworks.com/matlabcentral/answers/543416-how-to-plot-x-n-for-many-values-of-n#comment_886145 ?
More Answers (1)
David Hill
on 6 Jun 2020
alpha = 2
x0 = 100; % Initial conditions
for n = 1:30
x(n) = (alpha^n)*(x0)
end
disp(x);
plot(1:30,x);
3 Comments
David Hill
on 6 Jun 2020
x has only 30 values...use ; to suppress
alpha = 2;
x0 = 100; % Initial conditions
for n = 1:30
x(n) = (alpha^n)*(x0);
end
disp(x);
plot(1:30,x);
See Also
Categories
Find more on Subplots in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!