# IMSL® C Math Library User Guide

The IMSL C Numerical Library consists of two separate but coordinated libraries that allow easy user access, organized as follows:

**The Math Numerical Library**: general applied mathematics and special functions. This user guide has two parts, the Math Library and the Math Library Special Functions.**The Stat Numerical Library**: Statistics, with a single user guide, Stat Library.

## What's new in this release

See what's new in the IMSL® C Numerical Library 2023.1. See the change log for a complete list of new features and enhancements.