Not enough input arguments

Hey guys I have a problem here

recently when I use almost any function I get this message 'Not enough input arguments'

for ex,

clc;
clear;

V=randi([-10,10],1,5);
disp('The vector is: num2str(V)');
sub=V-3;
disp(sub);

pos=(V>0);
Numpos=sum(pos);
disp(Numpos);

abs(V);
disp(abs);

max(V);
disp(max);

I wrote this simple code and I got error in abs because there is not enough arguments.

[Reham Sayed]

someone help me please I have a final exam after 6 hours.

[Reham Sayed]

Thanks guys

It seems like I need coffeee :'D

Answer 1

[per isakson]

abs and max are Matlab functions, which requires input. Thus

disp(abs)
disp(max)

are wrong. What did you intend?

Answer 2

[madhan ravi]

disp(abs(V)) %change your lines to this
disp(max(V))