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Re: oppsite of abs [message #79529] Tue, 06 March 2012 21:38
Craig Markwardt is currently offline  Craig Markwardt
Messages: 1869
Registered: November 1996
Senior Member
On Tuesday, March 6, 2012 1:40:41 PM UTC-5, David Fanning wrote:
> Craig Markwardt writes:
>
>>
>> On Tuesday, March 6, 2012 12:45:10 PM UTC-5, zolile mtumela wrote:
>>> I want to plot a opposite of abs(...), which function will help me to
>>> do that. is sqrt of for that I want negative only for (....).
>>
>> -abs(X) should do the trick.
>
> Have I mentioned lately how much I LOVE this group! ;-)

We always need a few intriguing mathematical questions to keep us on our toes...

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Re: oppsite of abs [message #79535 is a reply to message #79529] Tue, 06 March 2012 10:40 Go to previous message
David Fanning is currently offline  David Fanning
Messages: 11724
Registered: August 2001
Senior Member
Craig Markwardt writes:

>
> On Tuesday, March 6, 2012 12:45:10 PM UTC-5, zolile mtumela wrote:
>> I want to plot a opposite of abs(...), which function will help me to
>> do that. is sqrt of for that I want negative only for (....).
>
> -abs(X) should do the trick.

Have I mentioned lately how much I LOVE this group! ;-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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Re: oppsite of abs [message #79536 is a reply to message #79535] Tue, 06 March 2012 10:40 Go to previous message
zolile mtumela is currently offline  zolile mtumela
Messages: 50
Registered: September 2011
Member
On Mar 6, 8:27 pm, Craig Markwardt <craig.markwa...@gmail.com> wrote:
> On Tuesday, March 6, 2012 12:45:10 PM UTC-5, zolile mtumela wrote:
>> I want to plot a opposite of abs(...),  which function will help me to
>> do that. is sqrt of for that I want negative only for (....).
>
> -abs(X) should do the trick.

Thanks, It works, thank you!!

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Re: oppsite of abs [message #79537 is a reply to message #79536] Tue, 06 March 2012 10:27 Go to previous message
Craig Markwardt is currently offline  Craig Markwardt
Messages: 1869
Registered: November 1996
Senior Member
On Tuesday, March 6, 2012 12:45:10 PM UTC-5, zolile mtumela wrote:
> I want to plot a opposite of abs(...), which function will help me to
> do that. is sqrt of for that I want negative only for (....).

-abs(X) should do the trick.

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