[Maxima-bugs] [maxima:bugs] Re: #4654 sign of nonscalar inconsistent

[David S. <tom...@us...>]

Should `rectform` behave the same way?


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**[bugs:#4654] sign of nonscalar inconsistent**

**Status:** open
**Group:** None
**Labels:** sign nonscalar 
**Created:** Wed Dec 24, 2025 07:59 PM UTC by Stavros Macrakis
**Last Updated:** Fri Dec 26, 2025 09:42 PM UTC
**Owner:** nobody


~~~
declare(mm,nonscalar);
sign([1,2,3]) => pnz   << an example of a non-scalar
sign(mm) => pnz
sign([1,2,3]^2) => pnz
sign(mm^2) => pz     <<< ???
sign(mm^^2) => pnz   <<< OK
~~~
or should ``sign(nonscalar)`` give an error exactly like ``sign(%i)``?


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