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#100 integrate((z^a+1)^b, z) crashes ←	↑	→ #102 solve(sinh(z)=cosh(z), z)

#101 laplace(log(z), z,w)

Edit detail for #101 laplace(log(z), z,w) revision 12 of 12

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Editor: Bill Page Time: 2008/10/21 20:32:10 GMT-7
Note: example

removed:
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-From unknown Tue Mar 8 05:04:51 -0600 2005
-From: 
-Date: Tue, 08 Mar 2005 05:04:51 -0600
-Subject: property change
-Message-ID: <20050308050451-0600@page.axiom-developer.org>
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-From unknown Wed Jun 29 04:46:48 -0500 2005
-From: unknown
-Date: Wed, 29 Jun 2005 04:46:48 -0500
-Subject: property change
-Message-ID: <20050629044648-0500@page.axiom-developer.org>
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-Category: Axiom Interpreter => Axiom Mathematics 
-Severity: critical => minor 
-Status: open => testing 
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-From BillPage Tue Jul 12 23:22:28 -0500 2005
-From: Bill Page
-Date: Tue, 12 Jul 2005 23:22:28 -0500
-Subject: solution unknown
-Message-ID: <20050712232228-0500@page.axiom-developer.org>
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-Category: Axiom Mathematics => Axiom Library 
-Severity: minor => normal 
-Status: testing => open 

changed:
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\begin{axiom}
laplace(log(z), z,w)
\end{axiom}

stack overflow

fixed in FriCAS --kratt6, Thu, 20 Dec 2007 02:18:19 -0800 reply

Status: open => fix proposed

doesn't crash anymore, but returns the result unevaluated. Mathematica 5.2 says:

  In[16]:= LaplaceTransform[Log[z],z,w]

             EulerGamma + Log[w]
  Out[16]= -(-------------------)
                      w

fixed in axiom. 20070921.01.tpd.patch --daly, Thu, 20 Dec 2007 05:28:00 -0800 reply

fixed in axiom. see patch 20070921.01.tpd.patch

From wh-sandbox --alfredo, Thu, 28 Aug 2008 18:40:17 -0700 reply

http://axiom.svn.sourceforge.net/viewvc/axiom/branches/wh-sandbox/src/algebra/laplace.spad.pamphlet?r1=263&r2=423&view=patch

Fixed in OpenAxiom --gdr, Fri, 17 Oct 2008 17:59:42 -0700 reply

fricas

(1) -> laplace(log(z), z,w)

$\label{eq1}\frac{-{\log \left({w}\right)}+{digamma \left({1}\right)}}{w}$

(1)

Type: Expression(Integer)