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Re: Number format [message #72443 is a reply to message #45673]

Sat, 11 September 2010 02:45

Wout De Nolf
Messages: 194
Registered: October 2008

Senior Member

On Fri, 10 Sep 2010 20:43:57 -0700 (PDT), mahesh <mkmvarma@gmail.com>
wrote:

> How do I change the format of numbers. For example : from '9.5600' to
> '9.56E+00'. I need to write the numbers in this format into a text
> file. I know there is 'FORMAT' function in IDL. I tried using it right
> after the printf statement. But it is not converting it to the format
> I wanted.
> Thanks,
> Mahesh

IDL> print,9.56,format='(E10.2)'
9.56E+000

This means: scientific notation, 2 digits after the decimal point and
a string length of 10 characters. Make sure this string length is
large enough (depends on the numbers you're printing). On a windows
platform, the exponent has 3 digits, on Linux it has 2. I don't think
you can change that (off course you can manipulate the string itself
before printing it).

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[Message index]

		number format in structure By: Koh Leong Tah on Sun, 25 September 2005 18:16
		Re: Number format By: Wout De Nolf on Sat, 11 September 2010 02:45

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