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Re: Combination [message #75402 is a reply to message #75401]

Mon, 28 February 2011 13:02

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

fgg writes:

> I should probably know this by now... what's going on below?
>
> IDL> c = factorial(21)/(factorial(3)*factorial(21-3))
> IDL> print, c
> 1330.0000
> IDL> myvec = dblarr(c)
> IDL> help, myvec
> MYVEC DOUBLE = Array[1329]
>
> I'd like myvec to have 1330 elements... not 1329.

I would guess yet another instance of the "Sky is Falling." :-)

http://www.idlcoyote.com/math_tips/sky_is_falling.html

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Combination By: fgg on Mon, 28 February 2011 13:43
		Re: Combination By: fgg on Mon, 28 February 2011 13:40
		Re: Combination By: Carsten Lechte on Mon, 28 February 2011 13:12
		Re: Combination By: David Fanning on Mon, 28 February 2011 13:02

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