[Maxima-bugs] [maxima:bugs] #4636 signum(ind) is an error

[Barton W. <wil...@us...>]

One more reason: I wanted to make `signum(2.0b0) = 1.0b0, signum(2/3) = 1, ...`.  the silly code was an easy way to achieve that


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**[bugs:#4636] signum(ind) is an error**

**Status:** open
**Group:** None
**Labels:** extended real signum limit 
**Created:** Thu Nov 27, 2025 12:41 PM UTC by Barton Willis
**Last Updated:** Fri Nov 28, 2025 01:21 PM UTC
**Owner:** nobody


Either a  `signum` nounform or `ind` is a better result than an error:
~~~
(%i4)	signum(ind);
sign: sign of ind is undefined.
~~~
Should the general simplifier, or the one‑argument limit function, handle` F(extended-real)`? We’ve discussed this—do we have a consensus?



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