Pasted

--API for getting variable info
 
function even(var)
  return var % 2 == 0
end
 
function odd(var)
  return not (var % 2 == 0) and (var % 1 == 0)
end
 
function whole(var)
  return var % 1 == 0
end
 
function positive(var)
  return var >= 0
end