## Summary

```
Math.PI;
Math.sqrt(4);
```

## Details

**The Math object** allows us to perform more mathematical operations on numbers and access important mathematical values.

### Properties

The Math object has several properties on it that correspond with important mathematical values, like pi.

To write a property from the Math object, write the word Math, a period, and then the name of the property written in all caps, like this (replace PROP with the actual property name):

`Math.PROP;`

Here are some examples of the properties on the Math object.

```
Math.E;
Math.PI;
```

### Methods

The Math object has several methods on it that allow you to perform other mathematical operations in JavaScript.

To write a method from the Math object, write the word Math, a period, the method name, a parentheses, and a number inside the parentheses (or a variable containing a number).

Here’s an example of the square root method being used:

```
Math.sqrt(4);
// output: 2
```

### Full list

For a full list of the Math objects properties and methods, visit the link in the References section.

## Demo

## Exercises

Try the following statements in the console:

```
Math.PI
Math.sqrt(4)
Math.sqrt(9)
```