From: Craig Kim <cjkim@...>
Date: 2006-07-14T02:28:22+09:00
Subject: Re: Negative Numbers

You can always multiply it by negative one (-1), e.g.

irb(main):001:0> a = -7
=> -7
irb(main):002:0> a *= -1
=> 7
irb(main):003:0> a
=> 7

----- Original Message ----- 
From: "Mat Schaffer" <schapht@gmail.com>
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Thursday, July 13, 2006 12:32 PM
Subject: Re: Negative Numbers


> On Jul 13, 2006, at 12:19 PM, Marston A. wrote:
>> Hey all,
>>
>> I'm just getting started with Ruby and was wondering if there is a way
>> to translate negative numbers into their positive equals.  i.e turning
>> -7 into 7.  Thanks for any help.
> 
> 
> Or if you want to flip the sign, just prepend a '-':
> 
> irb(main):001:0> --7
> => 7
> 
> -Mat
> 
> 
>