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Re: Multiplication turning array into scalar -- who wants to try? [message #53258 is a reply to message #53256] Sat, 31 March 2007 21:24 Go to previous messageGo to previous message
swingnut is currently offline  swingnut
Messages: 30
Registered: September 2005
Member
On Apr 1, 12:01 am, David Fanning <n...@dfanning.com> wrote:
...
> Your "signOfDifference" is a one-element array. When you multiply
> an array by another array, the result has as many elements as
> the *smallest* array.
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

Hooray for cross-posting! That's good to know. I guess now I'm just
confused, because I've not encountered such a difference in the
treatment of scalars and 1x1 arrays. This implies that a scalar is not
an array to me despite the spiel about IDL being an array language, so
that somewhere in its innards IDL treats a scalar and 1x1 array
differently but doesn't always make the result apparent to the user
unless said code monkey traces whatever went awry back to this
difference of treatment.

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