|  | 
 | .. _numeric: | 
 |  | 
 | ******************************** | 
 | Numeric and Mathematical Modules | 
 | ******************************** | 
 |  | 
 | The modules described in this chapter provide numeric and math-related functions | 
 | and data types. The :mod:`numbers` module defines an abstract hierarchy of | 
 | numeric types. The :mod:`math` and :mod:`cmath` modules contain various | 
 | mathematical functions for floating-point and complex numbers. For users more | 
 | interested in decimal accuracy than in speed, the :mod:`decimal` module supports | 
 | exact representations of decimal numbers. | 
 |  | 
 | The following modules are documented in this chapter: | 
 |  | 
 |  | 
 | .. toctree:: | 
 |  | 
 |    numbers.rst | 
 |    math.rst | 
 |    cmath.rst | 
 |    decimal.rst | 
 |    fractions.rst | 
 |    random.rst | 
 |    itertools.rst | 
 |    functools.rst | 
 |    operator.rst |