# Built-In Functions

Spread for ASP.NET allows you to quickly perform the calculations with the help of built-in functions. Learn more in documentation.

## Content

You can use built-in functions and operators to develop formulas and perform calculations. Add calculations quickly to your applications by using any of over 300 pre-defined algorithms or add your own custom functions.
For more information, refer to [Managing Formulas](/spreadnet/docs/latest/online-asp/overview/spweb-devguide/spweb-formulas) and to the [Formula Reference](https://developer.mescius.com/spreadnet/docs/latest/online-formula/overview.html).