use of $csign



Barton Willis wrote:
> The testsuite gets through with a few errors--some integrals in
> rtest_integrate
> (#270 for example) fail--actually, with my sign-log, test #270 generates a
> huge expression that might be correct but it contains many terms such as
> atan2(0,h). Changing
>
>   (*complexsign* (setf sign '$complex))
>
> to
>
>   (*complexsign* (setf sign '$pnz))
>
> makes the testsuite more quiet.
>   
I haven't been following the $csign discussion too closely, but doesn't
Maxima pretty much assume results are real-valued? So having things
suddenly be $complex instead of $pnz would break many things.

Ray