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Re: print a la C [message #9243 is a reply to message #9059]

Wed, 04 June 1997 00:00

R. Bauer
Messages: 137
Registered: November 1996

Senior Member

Andrea Spinelli wrote:
>
> Hi,
>
> does anybody know whether there is a freely available somewhere a
> function for printing floats in a way similar to the %g
> argument of printf? E.g.:
>
> printf("%g\n",0.02); [C]
> results in
> 0.02
>
> print, 0.01 [IDL]
> 0.0100000

Hi Andrea,

I can share one of my functions with you.
num_dec is written by Ray Sterner and you can get it from his library.

http://fermi.jhuapl.edu/res/

;Copyright R.Bauer
;Institut fuer stratosphaerische Chemie

function number_format,number,format=format,help=help

IF keyword_set(help) THEN BEGIN
print,'(number_forms) no_string=number_forms(number)'
print,'use format=format to get the Format code'

return,-1
ENDIF

ab = strtrim(string(number),2)

dp = strtrim(string(num_dec(number)),2)
length = strtrim(string(strpos(ab,'.')+1+long(dp)),2)

form = "(f"+length+"."+dp+")"

IF keyword_set(format) THEN BEGIN
return,form
ENDIF

return,string(format=form,number)

END

--
R.Bauer

Institut fuer Stratosphaerische Chemie (ICG-1)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de

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[Message index]

		print a la C By: Andrea Spinelli on Thu, 29 May 1997 00:00
		Re: print a la C By: knipp on Wed, 04 June 1997 00:00
		Re: print a la C By: R. Bauer on Wed, 04 June 1997 00:00

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