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Re: double precision? [message #49716 is a reply to message #49697]

Thu, 10 August 2006 13:35

news.qwest.net
Messages: 137
Registered: September 2005

Senior Member

<adisn123@yahoo.com> wrote in message
news:1155241088.452911.315540@i3g2000cwc.googlegroups.com...
> Hi,
>
> The value that I want to keep in a variable, a, is
> 1.24500000476837.
> After I define as
> IDL> a = 1.24500000476837
> then, print, a
> IDL> print, a
> IDL> 1.2450000
> so, I tried
> IDL> a = 1.24500000476837d ;; to make it as a double precision, but
> IDL prints
> IDL> help, a
> A DOUBLE = 1.2450000
> IDL> print, a
> 1.2450000
>
>
> How can I keep all those decimal points?
> I thought double precision can express up to 14 decimal places of
> significant points?

Try
IDL> print,a,format='(f50.25)'
1.2450000047683700000000000

Cheers,
bob

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[Message index]

		Re: double precision? By: Chris[2] on Fri, 11 August 2006 13:17
		Re: double precision? By: adisn123 on Fri, 11 August 2006 12:15
		Re: double precision? By: news.qwest.net on Thu, 10 August 2006 13:35
		Re: double precision? By: adisn123 on Mon, 14 August 2006 09:45

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