# Mathematical Functions

The Extreme Optimization Numerical Libraries for .NET provides methods for evaluating
many mathematical functions that are not available in the .NET framework Base Class Library.
These methods are contained in three classes. Methods that operate on integers are in the
IntegerMath class.
So-called *elementary functions*, like trigonometric and hyperbolic functions,
are in the Elementary class,
and so-called *special functions*, like Bessel and hypergeometric functions,
are in the Special class.

In this section: