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How to plot x(n) for many values of n?

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SAS
SAS 2020-6-6
评论： SAS 2020-6-7
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))

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采纳的回答

madhan ravi
madhan ravi 2020-6-6
编辑：madhan ravi 2020-6-6
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 个评论
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更多回答（1 个）

David Hill
David Hill 2020-6-6
alpha = 2
x0 = 100; % Initial conditions
for n = 1:30
x(n) = (alpha^n)*(x0)
end
disp(x);
plot(1:30,x);
  3 个评论
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David Hill
David Hill 2020-6-6
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);

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