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Re: How to plot multiple charts and ho to round float to specific precision? [message #44974 is a reply to message #44858]

Thu, 28 July 2005 05:14

Benjamin Hornberger is currently offline

Benjamin Hornberger
Messages: 258
Registered: March 2004

Senior Member

liko2@o2.pl wrote:
> No, this does only the rounding and output has still 4 digits after
> coma...I need to have only two digits after coma (eg. 23.46 not 23.4600)
>

It sounds like you don't want to *round* the number, but you want to
*print* it with a certain precision. Check the IDL help for "format
codes" and the FORMAT keyword to the STRING function and PRINT procedure.

IDL> print, 23.46, format='(f0.2)'
23.46

The "f" format code is for outputting floating point numbers. The "2"
means two digits after the decimal point. The "0" means "make the output
string just as long so that it fits".

Good luck,
Benjamin

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[Message index]

		How to plot multiple charts and ho to round float to specific precision? By: liko2@o2.pl on Wed, 27 July 2005 06:48
		Re: How to plot multiple charts and ho to round float to specific precision? By: Benjamin Hornberger on Thu, 28 July 2005 17:54
		Re: How to plot multiple charts and ho to round float to specific precision? By: Benjamin Hornberger on Thu, 28 July 2005 17:52
		Re: How to plot multiple charts and ho to round float to specific precision? By: Paul Van Delst[1] on Thu, 28 July 2005 15:45
		Re: How to plot multiple charts and ho to round float to specific precision? By: Benjamin Hornberger on Thu, 28 July 2005 15:41
		Re: How to plot multiple charts and ho to round float to specific precision? By: liko2@o2.pl on Wed, 03 August 2005 01:19
		Re: How to plot multiple charts and ho to round float to specific precision? By: Benjamin Hornberger on Thu, 28 July 2005 15:38
		Re: How to plot multiple charts and ho to round float to specific precision? By: Paul Van Delst[1] on Thu, 28 July 2005 09:30
		Re: How to plot multiple charts and ho to round float to specific precision? By: James Kuyper on Thu, 28 July 2005 08:46
		Re: How to plot multiple charts and ho to round float to specific precision? By: liko2@o2.pl on Thu, 28 July 2005 06:23
		Re: How to plot multiple charts and ho to round float to specific precision? By: liko2@o2.pl on Thu, 28 July 2005 05:24
		Re: How to plot multiple charts and ho to round float to specific precision? By: Benjamin Hornberger on Thu, 28 July 2005 05:14

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