an infinite loop
k = 0 ;
while true
% useful code here
k = k + 1 ;
disp(k)
end
But are you sure you want an infinite loop? This will mean you cannot do anything with matlab till the end of times ...
Maybe, you are also interested in the function break
k = 0 ;
while true
k = k + 1 ;
if k > randi(999,1)
break
end
disp(k)
end
disp('End of Times reached ...')