Too many input arguments

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

[KSSV]

What does the below line show up for you?

which roots

/MATLAB/toolbox/matlab/polyfun/roots.m

Answer 1

[VBBV]

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

[VBBV]

It could also be that you dont have any input arguments to defined function file or m-file with name TESTE