9. 数字和数学模块¶
The modules described in this chapter provide numeric and math-related functions
and data types. The numbers
module defines an abstract hierarchy of
numeric types. The math
and cmath
modules contain various
mathematical functions for floating-point and complex numbers. For users more
interested in decimal accuracy than in speed, the decimal
module supports
exact representations of decimal numbers.
本章包含以下模块的文档: