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I get Subscripted assignment dimension mismatch.

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Gonzalo Reina
Gonzalo Reina 2016-10-26
评论： Gonzalo Reina 2016-10-26
I get Subscripted assignment dimension mismatch when running this program.I just want the program to ask the user the number of sinwaves he wants to plot and also the frequency and amplitude of each
clear
clc
x = input('Please input the number of sinewaves that you want to be plotted ');
T = 1:10;
for n = 1:x
f(n) = input('Please input the frequency of the wave');
A(n) = input('Please input the amplitude of the wave');
wave(n) = (A(n))*sin(2*pi*(f(n))*T);
plot(T,wave(n),'b')
grid on
hold on
xlabel('Time')
ylabel('Amplitude')
title('Sinwave')
end

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Mischa Kim
Mischa Kim 2016-10-26
编辑：Mischa Kim 2016-10-26
Use instead
wave(n,:) = (A(n))*sin(2*pi*(f(n))*T);
plot(T,wave(n,:),'b')
You also might want to think about pre-allocating A and f.
What exactly are you trying to accomplish? I am asking because there might be more user-friendly ways of getting the values for those two vectors.
  1 个评论
Gonzalo Reina
Gonzalo Reina 2016-10-26
That enough user friendly for what I am trying to do. It is just a simple program to plot graphs. Why did you change that? pd:I'm a noob for matlab

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