# how to get my plot to only go to the value of 'n' I have set

5 views (last 30 days)
Anthony Walden on 18 Jun 2022
Commented: Star Strider on 18 Jun 2022
The below code plots out to well past the values of 'n' and I was wanting to limit it to just the range of 'n'. I saw something about using size(n) but I am not sure how and where to place it so that my plot only goes from 0 to 20 along the 'n' axis. Any help would be appreciated.
syms t;
n = 0:20;
N = 21;
% piecewise of x1 and x2 for unit pulse
x_n = [1, zeros(1,20)];
% discrete time unit pulse response
h_n = 0.05.^n - 0.25.^n;
% Convolution of unit step input x[n] and unit-pulse response h[n]
Y = conv(x_n,h_n);
figure(1);
stem(Y);

Star Strider on 18 Jun 2022
The easiest way is to just use xlim
syms t;
n = 0:20;
N = 21;
% piecewise of x1 and x2 for unit pulse
x_n = [1, zeros(1,20)];
% discrete time unit pulse response
h_n = 0.05.^n - 0.25.^n;
% Convolution of unit step input x[n] and unit-pulse response h[n]
Y = conv(x_n,h_n);
figure(1);
stem(Y);
xlim([min(n) max(n)])
.
##### 2 CommentsShowHide 1 older comment
Star Strider on 18 Jun 2022
My pleasure!
.

R2022a

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by