Hello,

An integer is just a number without a decimal part (for instance, -17, 0, and 42 are all integers, but 98.6 is not).

For the purpose of this lesson, we’ll also say that a number with a decimal part that is all 0s is also an integer, such as 7.0.

This means that, for this lesson, you can’t just test the input to see if it’s of type int.

If the difference between a number and that same number rounded is greater than zero, what does that say about that particular number?

For the above exercise, Below is my code

def is_int(x):

if x == round(x):

return True

else:

return False

------------------------------------------------------------------------But the actual code by Codeacademy is

def is_int(x):

absolute = abs(x)

rounded = round(absolute)

return absolute - rounded == 0

My question is what is difference between my code and codeacademy code. Can someone please help me to understand. Thanks.