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Re: How do I test for existence of a list element?


On 9/25/2010 2:21 AM, Joseph Gwinn wrote:
> I have an application where I am bouncing around in a list, and may
> accidentally ask for an element beyond the end of the list, which causes
> Mathematica to complain and balk, preventing completion.
>
> Is there any way to test for the existence of a list element without
> provoking complaint or balking should the list item fail to exist?

Why not ask for the Length[list]  ?

-- 
Helen Read
University of Vermont


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