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Re: Recognizing double precision? [message #56155 is a reply to message #56145]

Fri, 05 October 2007 10:26

R.G.Stockwell
Messages: 163
Registered: October 2004

Senior Member

"wlandsman" <wlandsman@gmail.com> wrote in message
news:1191597160.614557.153160@50g2000hsm.googlegroups.com...
> About once a year I receive a complaint about my code because someone
> inputs a Julian date like this
>
> IDL> jd = 2441636.1
>
> and then gets mysterious results because the value of jd is
> "truncated"
>
> IDL> print, jd, f='(f10.2)'
> 2441636.00

Well, to play devil's advocate, the programmer should not let the
user input single precision data in such a case.

If type eq Singleprecision then message, 'ERROR'

Cheers,
bob

PS
(Because the above statement does exactly what the user
"intended", inputs a single precision variable.)

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[Message index]

		Re: Recognizing double precision? By: Bringfried Stecklum on Sat, 06 October 2007 15:21
		Re: Recognizing double precision? By: R.G.Stockwell on Fri, 05 October 2007 10:26
		Re: Recognizing double precision? By: David Fanning on Fri, 05 October 2007 08:16
		Re: Recognizing double precision? By: wlandsman on Mon, 08 October 2007 06:18

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