#6388: Logarithm function log(x) is partially broken for x <= 0
-----------------------+----------------------------------------------------
Reporter: gmhossain | Owner:
Type: defect | Status: new
Priority: major | Milestone:
Component: symbolics | Keywords: negative argument, log
Reviewer: | Author:
Merged: |
-----------------------+----------------------------------------------------
Comment(by kcrisman):
Attach either patch, they are the same - things timed out on me and I
wasn't sure if it uploaded the first time. I can't figure out how to
remove the redundant one.
Please note that there should now be NO log(-1) that return an error
(including log(RIF(-1)), log(float(-1)), and log(complex(-1))) and there
should be NO log(0) that return a symbol or NaN (including the same
types). This is a change, but presumably will not break anything. It
does change the error message for
{{{
sage: plot(log,-1,1)
}}}
to something about complexes rather than math domain error, but that is
not a big deal since it still plots. It passed all tests for me.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6388#comment:1>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en
-~----------~----~----~----~------~----~------~--~---
