# Advanced Math Module

The Advanced Math module provides distance calculation helper methods.

## Distance calculation methods

Advanced Math provides a method that will display the distance, in miles, between two lat/long coordinates.

Usage: `getDistance(lat1, lon1, lat2, lon2)`

, where:

`lat1`

: latitude of first point`lon1`

: longitude of first point`lat2`

: latitude of second point`lng2`

: longitude of second point

`const advancedMath = require('advanced_math');`

const distanceInMiles = advancedMath.getDistance(43.7001100, -79.4163000, 37.7749300, -122.4194200);

## Degrees to Radians

Advanced Math provides a method that will convert from degrees to radians.

Usage: `deg2rad(deg)`

, where:

`deg`

: input of degrees

`const advancedMath = require('advanced_math');`

const radians = advancedMath.deg2rad(30);

##### Functions support

Functions provides a rich set of tools, and this documentation does not cover all of the potential situations you may encounter. If you need help with a situation not covered by the documentation, please contact PubNub Support