## Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

### Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial###### Daiji Nara

2,161 Points# Bug report: Javascript Foundation Challenge on Math Operator. Task 4 has can't be completed compiler fail

I will stop paying for treehouse service.

bad customer experience.

```
<!DOCTYPE html>
<html lang="en">
<head>
<title>JavaScript Foundations: The Math Object</title>
<link rel="stylesheet" href="core.css">
<script>
var diameter = 5.75,
a = 17,
b = 42,
c = 1337,
ageIfILiveToYear2100 = (new Date(2100, 0, 1) - new Date(1995, 5, 16, 7, 20)) / (1000 * 60 * 60 * 24 * 365.242);
var circumference = diameter * Math.PI;
var chance = Math.random() * 20;
var maxWidth = Math.max(a,b,c);
var age = Math.floor(ageIfLiveToYear2100);
/*
The JavaScript Math object has the following
constant (among others):
Math.PI
Approximately 3.14159. Pi (π) is used
to determine the circumference of a circle
given its diameter by multiplying the diameter
by π. Geometery refresher: the circumference
of a circle is the distance around the outside
edge. The diameter is the width of the circle.
The JavaScript Math object also has the following
methods (among others):
Math.random()
Returns a random number between 0 and 1
Math.max(a, b, ...)
Returns the largest value of the passed
arguments
Math.floor(a)
Returns the value of a number rounded down to
the nearest integer
*/
</script>
</head>
<body>
<h1>JavaScript Foundations</h1>
<h2>The Math Object</h2>
<script src="viewer.js"></script>
</body>
</html>
```

## 2 Answers

###### Anuar Abdullahi

Courses Plus Student 2,448 Pointsvar age = Math.floor(ageIfLiveToYear2100);

- I think that you forgot to put the letter "I" in the ageIfLiveToYear2100. It should be "ageIfILiveToYear2100" (ageIf"I"LiveToYear2100 ).

Let me know if that helped.

###### Oussama Baktit

7,717 PointsI agree with Anuar Abdullahi