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.
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
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
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 S.” [email protected]
To: “ruby-talk ML” [email protected]
Sent: Thursday, July 13, 2006 12:32 PM
Subject: Re: Negative Numbers
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 K. [email protected] wrote:
From: “Mat S.” [email protected]
-7 into 7. Thanks for any help.
–
–Scott
Hey everyone,
Great, this is exactly what I need. Thanks for the info.
Hi,
just another comment:
Am Freitag, 14. Jul 2006, 01:22:56 +0900 schrieb Justin C.:
Marston A. wrote:
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
Be careful. The minus sign is part of the constant. A minus
prepended to a variable takes precedence over the `abs’
function call:
irb(main):001:0> -7.abs
=> 7
irb(main):002:0> a=7 ; -a.abs
=> -7
Bertram