本文实例讲述了Python中pow()和math.pow()函数用法。分享给大家供大家参考,具体如下:
1. 内置函数pow()
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>>> help ( pow )
Help on built - in function pow in module __builtin__:
pow (...)
pow (x, y[, z]) - > number
With two arguments, equivalent to x * * y. With three arguments,
equivalent to (x * * y) % z, but may be more efficient (e.g. for longs).
>>>
>>> pow ( 3 , 2 ) # 3**2
9
>>> pow ( 3 , 2 , 4 ) # (3**2)%4
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2. math.pow()
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>>> import math
>>> help (math. pow )
Help on built - in function pow in module math:
pow (...)
pow (x, y)
Return x * * y (x to the power of y).
>>> math. pow ( 3 , 2 )
9.0
>>>
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希望本文所述对大家Python程序设计有所帮助。
原文链接:http://blog.csdn.net/sxingming/article/details/52119854