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Re: unwrap modulo 2pi [message #23721 is a reply to message #23649]

Thu, 08 February 2001 07:43

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

"Wim G. Bouwman" <w.g.bouwman@iri.tudelft.nl> writes:

> Dear Graham,
> The function is written in PV-WAVE and NINT is a standard function giving
> the integer value as a long. I am sure that something similar does exist
> in IDL.
> In PV-WAVE you have also FIX, which returns the integer value as an
> integer.

Just curious, how does NINT do the rounding? In IDL there are FLOOR,
CEIL and ROUND which have well-behaved rounding properties (round up,
down and to-nearest, respectively). The well-known LONG function is
not consistent depending on the sign of its argument.

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: unwrap modulo 2pi By: Pavel A. Romashkin on Wed, 07 February 2001 15:25
		Re: unwrap modulo 2pi By: Craig Markwardt on Wed, 07 February 2001 13:07
		Re: unwrap modulo 2pi By: Pavel A. Romashkin on Wed, 07 February 2001 12:39
		Re: unwrap modulo 2pi By: Randall Skelton on Wed, 07 February 2001 11:48
		Re: unwrap modulo 2pi By: tam on Wed, 07 February 2001 11:18
		Re: unwrap modulo 2pi By: Dave Greenwood on Wed, 07 February 2001 10:48
		Re: unwrap modulo 2pi By: Dave Greenwood on Wed, 07 February 2001 10:29
		Re: unwrap modulo 2pi By: graham_wilson on Wed, 07 February 2001 09:52
		Re: unwrap modulo 2pi By: Pavel A. Romashkin on Wed, 07 February 2001 09:02
		Re: unwrap modulo 2pi By: graham_wilson on Wed, 07 February 2001 07:30
		Re: unwrap modulo 2pi By: Wim Bouwman on Fri, 09 February 2001 00:42
		Re: unwrap modulo 2pi By: Craig Markwardt on Thu, 08 February 2001 07:43
		Re: unwrap modulo 2pi By: Wim Bouwman on Thu, 08 February 2001 01:13

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