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                ### 導航 - [索引](../genindex.xhtml "總目錄") - [模塊](../py-modindex.xhtml "Python 模塊索引") | - [下一頁](numbers.xhtml "numbers --- 數字的抽象基類") | - [上一頁](enum.xhtml "enum --- Support for enumerations") | - ![](https://box.kancloud.cn/a721fc7ec672275e257bbbfde49a4d4e_16x16.png) - [Python](https://www.python.org/) ? - zh\_CN 3.7.3 [文檔](../index.xhtml) ? - [Python 標準庫](index.xhtml) ? - $('.inline-search').show(0); | # 數字和數學模塊 本章介紹的模塊提供與數字和數學相關的函數和數據類型。 [`numbers`](numbers.xhtml#module-numbers "numbers: Numeric abstract base classes (Complex, Real, Integral, etc.).") 模塊定義了數字類型的抽象層次結構。 [`math`](math.xhtml#module-math "math: Mathematical functions (sin() etc.).") 和 [`cmath`](cmath.xhtml#module-cmath "cmath: Mathematical functions for complex numbers.") 模塊包含浮點數和復數的各種數學函數。 [`decimal`](decimal.xhtml#module-decimal "decimal: Implementation of the General Decimal Arithmetic Specification.") 模塊支持使用任意精度算術的十進制數的精確表示。 本章記錄以下模塊: - [`numbers` --- 數字的抽象基類](numbers.xhtml) - [The numeric tower](numbers.xhtml#the-numeric-tower) - [Notes for type implementors](numbers.xhtml#notes-for-type-implementors) - [Adding More Numeric ABCs](numbers.xhtml#adding-more-numeric-abcs) - [Implementing the arithmetic operations](numbers.xhtml#implementing-the-arithmetic-operations) - [`math` --- 數學函數](math.xhtml) - [數論與表示函數](math.xhtml#number-theoretic-and-representation-functions) - [冪函數與對數函數](math.xhtml#power-and-logarithmic-functions) - [三角函數](math.xhtml#trigonometric-functions) - [角度轉換](math.xhtml#angular-conversion) - [雙曲函數](math.xhtml#hyperbolic-functions) - [特殊函數](math.xhtml#special-functions) - [常數](math.xhtml#constants) - [`cmath` --- Mathematical functions for complex numbers](cmath.xhtml) - [Conversions to and from polar coordinates](cmath.xhtml#conversions-to-and-from-polar-coordinates) - [冪函數與對數函數](cmath.xhtml#power-and-logarithmic-functions) - [三角函數](cmath.xhtml#trigonometric-functions) - [雙曲函數](cmath.xhtml#hyperbolic-functions) - [Classification functions](cmath.xhtml#classification-functions) - [常數](cmath.xhtml#constants) - [`decimal` --- 十進制定點和浮點運算](decimal.xhtml) - [快速入門教程](decimal.xhtml#quick-start-tutorial) - [Decimal 對象](decimal.xhtml#decimal-objects) - [Logical operands](decimal.xhtml#logical-operands) - [Context objects](decimal.xhtml#context-objects) - [常數](decimal.xhtml#constants) - [Rounding modes](decimal.xhtml#rounding-modes) - [Signals](decimal.xhtml#signals) - [Floating Point Notes](decimal.xhtml#floating-point-notes) - [Mitigating round-off error with increased precision](decimal.xhtml#mitigating-round-off-error-with-increased-precision) - [Special values](decimal.xhtml#special-values) - [Working with threads](decimal.xhtml#working-with-threads) - [Recipes](decimal.xhtml#recipes) - [Decimal FAQ](decimal.xhtml#decimal-faq) - [`fractions` --- 分數](fractions.xhtml) - [`random` --- 生成偽隨機數](random.xhtml) - [簿記功能](random.xhtml#bookkeeping-functions) - [整數用函數](random.xhtml#functions-for-integers) - [序列用函數](random.xhtml#functions-for-sequences) - [實值分布](random.xhtml#real-valued-distributions) - [替代生成器](random.xhtml#alternative-generator) - [關于再現性的說明](random.xhtml#notes-on-reproducibility) - [例子和配方](random.xhtml#examples-and-recipes) - [`statistics` --- Mathematical statistics functions](statistics.xhtml) - [Averages and measures of central location](statistics.xhtml#averages-and-measures-of-central-location) - [Measures of spread](statistics.xhtml#measures-of-spread) - [Function details](statistics.xhtml#function-details) - [異常](statistics.xhtml#exceptions) ### 導航 - [索引](../genindex.xhtml "總目錄") - [模塊](../py-modindex.xhtml "Python 模塊索引") | - [下一頁](numbers.xhtml "numbers --- 數字的抽象基類") | - [上一頁](enum.xhtml "enum --- Support for enumerations") | - ![](https://box.kancloud.cn/a721fc7ec672275e257bbbfde49a4d4e_16x16.png) - [Python](https://www.python.org/) ? - zh\_CN 3.7.3 [文檔](../index.xhtml) ? - [Python 標準庫](index.xhtml) ? - $('.inline-search').show(0); | ? [版權所有](../copyright.xhtml) 2001-2019, Python Software Foundation. Python 軟件基金會是一個非盈利組織。 [請捐助。](https://www.python.org/psf/donations/) 最后更新于 5月 21, 2019. [發現了問題](../bugs.xhtml)? 使用[Sphinx](http://sphinx.pocoo.org/)1.8.4 創建。
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