[Maxima] Simplifying atan2 WAS: bugs, features?

[Barton Willis]

-----maxima-bounces at math.utexas.edu wrote: -----

>"(if x < 1 then 42 else -42) + (if x < 1 then -42 else 42) --> 0."

>Why not extend the logic for (the undocumented) %if and use it.

To simplify sums containing conditionals (either if or %if), the
function simplus would need to be patched, not the simplification
of the conditional.

There should be documentation for %if in
maxima/share/contrib/topoly-user-doc.html
Let me know if it's missing; from the documentation:

Status: The operator %if is experimental; its specifications might change
and its functionality
might be merged into other Maxima functions.


Barton