Too many input arguments using square

2022 5 17
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更新时间：2022 5 17
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As the title says for some reason square command has too many input arguments I don't know why. Done the same example a while ago and all worked.
tmax=9e-3;
T=3e-3;
Umax=2;
Umin=-3;
N=19;
a=0.6;
wo=(2*pi)/T;
t=linspace(0,tmax,2001);
U=square(wo*t,100*a);
U=0.5*(Umax-Umin)*U+0.5*(Umax+Umin);
td=linspace(0,tmax,N);
Ud=square(wo*td,100*a);
Ud=0.5*(Umax-Umin)*Ud+0.5*(Umax+Umin);
close all;
plot(t,U,'b');
grid on; zoom on; hold on;
stem(td,Ud,'r*');

1 个评论
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Torsten
Torsten 2022-5-17
Check whether you have the Signal Processing Toolbox installed and licensed.

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 采纳的回答

KSSV
KSSV 2022-5-17
Ran in:

0 个投票

Ran in:
Code is working fine. It seems you have introduced a variable named square. Clear it and then run the function. REad about clear
clear square
tmax=9e-3;
T=3e-3;
Umax=2;
Umin=-3;
N=19;
a=0.6;
wo=(2*pi)/T;
t=linspace(0,tmax,2001);
U=square(wo*t,100*a);
U=0.5*(Umax-Umin)*U+0.5*(Umax+Umin);
td=linspace(0,tmax,N);
Ud=square(wo*td,100*a);
Ud=0.5*(Umax-Umin)*Ud+0.5*(Umax+Umin);
close all;
plot(t,U,'b');
grid on; zoom on; hold on;
stem(td,Ud,'r*');

5 个评论
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Arkadius882
Arkadius882 2022-5-17
Still doesn't work. Used clear command, even copied the code to another function and there's still the same error.
KSSV
KSSV 2022-5-17
Ran in:
Ran in:
What does which square gives..?
which square
/MATLAB/toolbox/signal/signal/square.m
Arkadius882
Arkadius882 2022-5-17
Okay, I finally managed to fix it. As you said the problem was that I named function square and despite using clear square the problem still occured. I had to delete that badly named function. Thanks a lot!
KSSV
KSSV 2022-5-17
One should avoid naming function name/ variable name with inbuilt function names.
:)
Arkadius882
Arkadius882 2022-5-17
Now I know it, thank you again :)

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