Too many input arguments

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Eingylla Grace
Eingylla Grace 2022-7-24
编辑： VBBV 2022-7-24
Ran in:
Hello! I noticed that whenever I use the syntaxes residue() and roots(), I get the error "too many input arguments". I copy pasted this code directly from matlab's documentation, but I keep getting the error. I tried to run the code here and it works. Is there any way to fix it?
p = [3 -2 -4];
r = roots(p)
r = 2×1
1.5352 -0.8685
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KSSV
KSSV 2022-7-24
Ran in:
What does the below line show up for you?
which roots
/MATLAB/toolbox/matlab/polyfun/roots.m

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回答（1 个）

VBBV
VBBV 2022-7-24
Ran in:
p = [3 -2 -4];
TESTE(p) ;% give the input argument matrix p for the function TESTE in command window
ans = 2×1
1.5352 -0.8685
function r = TESTE(p)
r = roots(p);
end
If you give the input argument matrix , p to the function TESTE in command window, then it will work, It seems you have not given any input arguments and calling function directly
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VBBV
VBBV 2022-7-24
编辑：VBBV 2022-7-24
It could also be that you dont have any input arguments to defined function file or m-file with name TESTE

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