Signal Processing functions perform a variety of tasks related to signal processing.

This section is organized as follows.

- The Basic Concepts chapter provides an overview of the information contained in the functional descriptions.
- The Library Version chapter describes the FW function that provides library version information.
- The Essential Vector Functions chapter describes functions that perform vector calculations.
- The Fixed Accuracy Arithmetic Functions chapter describes functions that perform arithmetic operations at a chosen level of accuracy.
- The Vector Initialization Functions chapter describes functions that perform vector initialization tasks.

Within the section, the **Basic Concepts** chapter provides overview information related to the functions in the library,
and subsequent chapters provide detailed descriptions of library functions that perform operations of the same kind.

Each detailed description consists of a **Function Name** followed by a short description, a **Synopsis** of the function syntax,
a list of function **Parameters**, a detailed **Description** of the function, and a list of **Return Values.**

When a function is optimized for one or more technologies, a list of **Supported Technologies** is provided after the short description.

The Function Quick Reference provides an index and snapshot view of function optimizations.