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# Thread: Math.E - what exactly is it?

1. ## Math.E - what exactly is it?

Hey everyone,

What is Math.E and how can it be used? I've heard it has something to do with "logarithms" but I'm not quite sure what that is either.

Many thanks,
Alex.

3. ## Re: Math.E - what exactly is it?

This is a constant value that is stored in the Math class;
Example: the PI is also a standart constant look references to math constants
```class Math
{
static double E = 2.718...;
static double PI = 3.141596535...;
}```
Maybe your looking for the exponent method ?
Here are methods that are int the Math class with description:
abs(type a) – returns the absolute value of the type(double, float, long, int)
exp(double exponent) – e^exponent. Returns double
sqrt(double a) – returns the square root of the given double
log(double a) – returns the natural log of a
log10(double a) – returns the base 10 log of a
ceil(double a) – rounds up to the nearest whole int
floor(double a) – rounds down to the nearest whole int
pow(double base, double exponent) – guess what this does? Yep, raises the base to the exponent

4. ## The Following User Says Thank You to Eldarmk2 For This Useful Post:

RedCloudTsunami (July 10th, 2012)