I like:

real=:(]-:+) :: 0:

On Fri, Oct 8, 2010 at 4:22 PM, Dan Bron <j...@bron.us> wrote:

> 0 = {:@+.  is the obvious test.  I'm sure there are more efficient methods
> leveragng complex arithmetic.
>
> Note this is one of the phrases where the difference btwn @ and @: is
> relevant, and the former is what we want, as opposed to the more common
> latter.
>
> Check out load 'validat' (no e).  Or open the script.
>
>
> -Dan
>
>
> Please excuse typos; composed on a handheld device.
>
> -----Original Message-----
> From: Kip Murray <k...@math.uh.edu>
> Sender: programming-boun...@jsoftware.com
> Date: Fri, 08 Oct 2010 15:48:12
> To: <programming@jsoftware.com>
> Reply-To: Programming forum <programming@jsoftware.com>
> Subject: [Jprogramming] Real Array
>
> Is there a way to test whether an array is real, i.e., numeric and not
> imaginary, without using 3!:0 ?  Where are such tests found?  --Kip Murray
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