make input positive mandatory

so i am trying to make this code have the user enter a positive integer, and if it isnt positive, then it needs to ask them over and over again until a positive integer is inputted. then continue with the code, but my code is only asking like 3 times im new to coding and matlab, can anyone help me out?

[Colby Jennings]

update... i see why it is happening three times, back down to second input stays....

[Colby Jennings]

i cant figure ou loops lol

Answer 1

[David Hill]

while 1
    a=input('Please input a postive integer');
    if isequal(a,floor(a))&&a>0
        break;
    end
    display('a is not a positive integer');
end

[Colby Jennings]

thank you!!!!