Re:
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- Subject: Re:
- From: KHMan <keinhong@...>
- Date: 2007年11月24日 12:30:48 +0800
Ralph Hempel wrote:
> XenoLiz wrote:
>> Hm.
>> | Lua 5.1.2 Copyright (C) 1994-2007 Lua.org, PUC-Rio
>> | > two,m_two=2,-2 print(-2^2, -two^2, m_two^2)
>> | -4 -4 4
>>
>> Why was over estimated priority?
>
> because ^ binds higher than - and you are calculating
>
> -(2^2) which is now and has always been -4
Also, the negative sign should always be considered a unary
operator, (and the only thing with a higher priority is ^) not the
negative sign of a negative number.
--
Cheers,
Kein-Hong Man (esq.)
Kuala Lumpur, Malaysia