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

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);

Answer 1

[Star Strider]

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)])

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[Anthony Walden]

Thank you for the help.

[Star Strider]

My pleasure!

If my Answer helped you solve your problem, please Accept it!

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