# Functions
Weather has a few built-in functions for conversions and calculations.

## Functions
- **Dew point**: Calculate the dew point given the temperature and relative humidity (`dewpoint(_, _)`)
- **Convert Fahrenheit to Celsius**: Convert a temperature in Fahrenheit to Celsius (`ftoc(_)`)
- **Convert Celsius to Fahrenheit**: Convert a temperature in Celsius to Fahrenheit (`ctof(_)`)
- **Convert Celsius to Kelvin**: Convert a temperature in Celsius to Kelvin (`ctok(_)`)
- **Convert Kelvin to Celsius**: Convert a temperature in Kelvin to Celsius (`ktoc(_)`)
- **Convert Fahrenheit to Kelvin**: Convert a temperature in Fahrenheit to Kelvin (`ftok(_)`)
- **Convert Kelvin to Fahrenheit**: Convert a temperature in Kelvin to Fahrenheit (`ktof(_)`)