\chapter{Numeric and Mathematical Modules}\label{numeric} The modules described in this chapter providenumeric and math-related functions and data types.The \module{math} and \module{cmath} contain various mathematical functions for floating-point and complex numbers.For users more interested in decimal accuracy than in speed, the \module{decimal} module supports exact representations of  decimal numbers. The following modules are documented in this chapter: \localmoduletable