How to Limit input to a whole interger?

Hi Im trying to tell matlab to only allow input for whole numbers only i.e no numbers such as 23.4. How do I do this? also by doing this do I also stop any inputs that are imaginary?

Answer 1

[Azzi Abdelmalek]

test=0
while test==0 
a=input('enter integer number')  
  if fix(a)-a==0
    test=1
  else
    disp('Only integer numbers are allowed')
  end
end

[Walter Roberson]

while mod(a,1)

can be used to replace

while fix(a)-a~=0