𝑥 [𝑛] = 𝑢[𝑛]𝑒^−𝑛 how to plot it

𝑥[𝑛] = 𝑢[𝑛]𝑒^−𝑛

Answer 1

[akshatsood]

Hi Mohammed,

I understand that you want to plot the following discrete equation.This can be achieved by leveraging the "stem" function which is used for plotting discrete sequence data.

n = (-20:20); % defining range of n

u_n = (n>=0); % unit step function

tiledlayout(3,1);

nexttile; % u[n]
stem(n,u_n);

nexttile; % e^-n
stem(n,exp(-n));

nexttile; % u[n]*e^-n
stem(n,u_n.*exp(-n));

For more information about the "stem" function, have a look at the following reference

https://in.mathworks.com/help/matlab/ref/stem.html?s_tid=doc_ta

I hope this helps

[Mohammed Alqahtany]

thank you

[Sam Chak]

Hi @akshatsood

Try guiding @Mohammed Alqahtany in solving these two questions as well.

https://www.mathworks.com/matlabcentral/answers/2035779-plot-2-signals-for-sin-t?s_tid=srchtitle

https://www.mathworks.com/matlabcentral/answers/2035894-plot-the-signal-in-three-ways?s_tid=srchtitle