Python和Power数学 [英] Python and Powers Math

问题描述

我一直在学习Python，但我有些困惑.在线讲师告诉我，当我尝试提高到一定数量时，请使用运算符**而不是^.示例:

I've been learning Python but I'm a little confused. Online instructors tell me to use the operator ** as opposed to ^ when I'm trying to raise to a certain number. Example:

print 8^3

给出11的输出，但是我所寻找的(告诉我)更类似于:print 8 ** 3给出了512的正确答案.但是为什么?

Gives an output of 11. But what I'm look for (I'm told) is more akin to: print 8**3 which gives the correct answer of 512. But why?

有人可以向我解释吗?为什么8 ^ 3不等于512，因为它是正确的答案?在什么情况下为11(8 ^ 3的结果)?

Can someone explain this to me? Why is it that 8^3 does not equal 512 as it is the correct answer? In what instance would 11 (the result of 8^3)?

我确实尝试搜索SO，但是我只看到有关除法时获得模数的信息.

I did try to search SO but I'm only seeing information concerning getting a modulus when dividing.

推荐答案

运算符^是按位运算符，它执行按位异或"或"".
更多: http://wiki.python.org/moin/BitwiseOperators

Operator ^ is a bitwise operator, which does "bitwise exclusive or".
More: http://wiki.python.org/moin/BitwiseOperators

幂运算符为**，例如 8**3 ，它等于512.
参考: http://docs.python.org/reference/expressions.html #the-power-operator

The power operator is **, like 8**3 which equals to 512.
Ref: http://docs.python.org/reference/expressions.html#the-power-operator

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