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Re: format questions [message #51641 is a reply to message #51637]

Fri, 01 December 2006 11:10

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

lee writes:

> ## Question : print out is different from the original file!!!!!!,
> why?????
> IDL> print, mx
> 598594.
> IDL> print, double(mx)
> 598594.38
> IDL> print, double(my)
> 6738650.0

Because you are not using a FORMAT that delivers enough
accuracy. See the following article, about in the middle:

http://www.dfanning.com/math_tips/sky_is_falling.html

Something like:

IDL> Print, mx, FORMAT='(D20.10)'

Cheers,

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

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[Message index]

		Re: format questions By: Foldy Lajos on Fri, 01 December 2006 11:34
		Re: format questions By: David Fanning on Fri, 01 December 2006 11:30
		Re: format questions By: lee on Fri, 01 December 2006 11:25
		Re: format questions By: David Fanning on Fri, 01 December 2006 11:10

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