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## [Axiom-developer] Bug in complexForm : complexForm(log(%i) - log(-%i)) -

**From**: |
Vladimir Bondarenko |

**Subject**: |
[Axiom-developer] Bug in complexForm : complexForm(log(%i) - log(-%i)) -> 0 |

**Date**: |
Wed, 19 Jan 2005 09:04:25 +0200 |

Hi *,
>*From my teen years I got accustomed to see a simple*
thing a certain way, but now I am amazed.
It would be great that an AXIOM connoisseur commented
the stuff, me, the outsider consider to be a sure bug.
Please confirm it or tell me why I am wrong here.
AXIOM Version of Wednesday December 15, 2004 at 00:50:38
AXIOM -> complexForm(log(%i) - log(-%i))
0
COMPARE:
Derive 6.1> LOG(#i) - LOG(-#i)
Maple 9.5.2> ln(I) - ln(-I);
MuPAD 3.1> ln(I) - ln(-I);
Mathematica 5.1> Log[I] - Log[-I]
Maxima 5.9.1> RECTFORM(LOG(%I) - LOG(-%I));
#i*pi
I*Pi
I*PI
I*Pi
%I %PI
Much thanks for your comments in advance.
Best wishes,
Vladimir Bondarenko
http://www.cybertester.com/
http://maple.bug-list.org/
http://www.CAS-testing.org/

**[Axiom-developer] Bug in complexForm : complexForm(log(%i) - log(-%i)) -> 0**,
*Vladimir Bondarenko* **<=**