Hi, it is really not complex but I'm not sure how to use the 'round()' function nor the 'math.floor' one.

what is wrong?

Practice Makes Perfect:is_int

```
Replace this line with your code.
def is_int(x):
if round(x)-x==0:
return True
```

Hi, it is really not complex but I'm not sure how to use the 'round()' function nor the 'math.floor' one.

what is wrong?

Practice Makes Perfect:is_int

```
Replace this line with your code.
def is_int(x):
if round(x)-x==0:
return True
```

@tagsurfer82195,

With a *google search***round() site:https://en.wikipedia.org/wiki/Python_(programming_language)**

you will find

https://en.wikipedia.org/wiki/Python_(programming_language)#Mathematics

```
Python provides a round function for rounding a float to the nearest integer.
For tie-breaking, versions before 3 use round-away-from-zero:
round(0.5) is 1.0, round(-0.5) is −1.0.[70]
Python 3 uses round-to-even: round(1.5) is 2, round(2.5) is 2.
```

OR *google search***round() site:https://docs.python.org**

https://docs.python.org/2/library/functions.html#round

```
round(number[, ndigits])
Return the floating point value number
rounded to ndigits digits after the decimal point.
If ndigits is omitted, it defaults to zero.
The result is a floating point number.
Values are rounded to
the closest multiple of 10 to the power minus ndigits;
if two multiples are equally close,
rounding is done away from 0
(so, for example, round(0.5) is 1.0 and round(-0.5) is -1.0).
Note:
The behavior of round() for floats can be surprising: for example,
round(2.675, 2) gives 2.67 instead of the expected 2.68.
This is not a bug:
it’s a result of the fact that most decimal fractions
can’t be represented exactly as a float.
See Floating Point Arithmetic:
Issues and Limitations for more information.
```

**floor() site:https://docs.python.org**

https://docs.python.org/2/library/math.html

```
math.floor(x)
Return the floor of x as a float,
the largest integer value less than or equal to x
```

You could test in **labs.codecademy.com***choose Python*

You will get a split-screen

In the *left-hand-side* you *paste-in* your code*click* on the *Run* button.

The *right-hand-side* is the **console**

== the code==

```
import math
x= 2.65
print math.floor(x)
print round(x,1)
```