What about the possibility of creating a new system variable called void or %void that would have the properties that I described. I think this is desirable because many times I think a function should not return a value when the function fails at its job. This might be a way to resolve how to handle all of the problems with 'und, 'ind, 'inf and 'minf.
Rich
----- Original Message -----
From: Stavros Macrakis
To: Richard Hennessy
Cc: Maxima List
Sent: Sunday, October 04, 2009 11:00 AM
Subject: Re: [Maxima] Void in Maxima
On Sun, Oct 4, 2009 at 9:09 AM, Richard Hennessy <rich.hennessy at verizon.net> wrote:
Is there a way to cause a function to have no return value.
No.
It is possible to create a symbol of length 0 using ?intern("$") which has a zero-length printed form, but this has none of the properties you want.
-s
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