[Maxima-bugs] [maxima:bugs] #4760 crazy question: Is "1" zero or nonzero? from one-arg limit

[Stavros M. <mac...@us...>]

Agreed this is a bug.

Single-argument ``limit`` isn't supposed to return things like ``(-1)^n*minf``, but to resolve them. In this case, I think the only correct result is ``infinity``, which is what it returns for ``limit((-1)^x/zerob)`` and ``limit((-1)^(-x^2-1)/zerob)`` with no declarations on ``x``.



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**[bugs:#4760] crazy question: Is "1" zero or nonzero? from one-arg limit**

**Status:** open
**Group:** None
**Created:** Sat Jun 06, 2026 08:08 PM UTC by Barton Willis
**Last Updated:** Sat Jun 06, 2026 08:08 PM UTC
**Owner:** nobody


  This should either ask for the parity of `n`, or return something like `(-1)^n * minf`. It should not ask if `1' is zero or nonzero.
 
~~~
(%i1)	declare(n,integer)$

(%i2)	assume(n < 0)$

(%i3)	limit((-1)^n/zerob);
"Is "1" zero or nonzero?"nz;
(%o3)	minf
~~~



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