[Axiom-developer] [#47 complexForm(log(%i) - log(-%i))]

[kratt6]

Changes 
http://page.axiom-developer.org/zope/mathaction/47ComplexFormLogILogI/diff
--

??changed:
-\end{axiomi}
\end{axiom}

--removed:
-AXIOM Version of Wednesday December 15, 2004 at 00:50:38
-
-AXIOM ->         complexForm(log(%i) - log(-%i))
-
-                 0
-

??changed:
-  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
-
-======================================================================
-
-Vladimir Bondarenko writes:
- > AXIOM ->         complexForm(log(%i) - log(-%i))
- > 
- >                  0
-
-[1 more lines...]
  Derive 6.1>      LOG(#i) - LOG(-#i)              gives #i*pi
  Maple 9.5.2>     ln(I) - ln(-I);                 gives I*Pi
  MuPAD 3.1>       ln(I) - ln(-I);                 gives I*PI
  Mathematica 5.1> Log[I] - Log[-I]                gives I*Pi
  Maxima 5.9.1>    RECTFORM(LOG(%I) - LOG(-%I));   gives %I %PI

However::

 AXIOM ->         complexForm(log(%i) - log(-%i))  gives 0
 
The problem is in the operation "argument":

??changed:
-\end{axioim}
\end{axiom}

--removed:
-

--
forwarded from http://page.axiom-developer.org/zope/mathaction/address@hidden