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Re: Bug fix for $((x**y)) algorithm on 64+ bits machines.
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From: |
Stephane CHAZELAS |
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Subject: |
Re: Bug fix for $((x**y)) algorithm on 64+ bits machines. |
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Date: |
Sun, 02 Oct 2011 21:15:27 -0000 |
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User-agent: |
slrn/pre1.0.0-18 (Linux) |
2011-09-17, 13:06(+00), Stephane CHAZELAS:
> 2011-09-16, 17:17(-07), William Park:
>> 145557834293068928043467566190278008218249525830565939618481
>> is awfully big number! :-)
>
> 3**2**62 is 3**(2**62), 3**4611686018427387904, not a number you
> can represent with 64bits, nor any reasonable number of bits,
> not (3**2)**62.
[...]
Sorry, my bad,
3**2**62 is indeed (3**2)**62 in bash and in zsh contrary to
most other places (ksh93, bc, python, gawk, perl, ruby...).
--
Stephane