Negative Numbers

Discussion in 'Ruby' started by Marston A., Jul 13, 2006.

1. Marston A.Guest

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.

--
Posted via http://www.ruby-forum.com/.

Marston A., Jul 13, 2006

2. Justin CollinsGuest

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.
>
>

irb(main):001:0> -7.abs
=> 7

-Justin

Justin Collins, Jul 13, 2006

3. gekkonierGuest

gekkonier, Jul 13, 2006
4. Mat SchafferGuest

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

Mat Schaffer, Jul 13, 2006
5. Craig KimGuest

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" <>
To: "ruby-talk ML" <>
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
>
>
>

Craig Kim, Jul 13, 2006
6. Scott HillGuest

You can also call the abs method of a number to get its absolute
value, which will be positive.

--Scott

On 7/13/06, Craig Kim <> wrote:
> 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" <>
> To: "ruby-talk ML" <>
> 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
> >
> >
> >

>
>

--

--Scott

Scott Hill, Jul 13, 2006
7. Marston A.Guest

Marston A., Jul 13, 2006