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#10 romberg slowdown  ← ↑ →  #101 laplace(log(z), z,w)

#100 integrate((z^a+1)^b, z) crashes
  
last edited 15 years ago by japp

Edit detail for #100 integrate((z^a+1)^b, z) crashes revision 5 of 5
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Editor: japp
Time: 2008/10/23 06:28:26 GMT-7
Note: 
changed:
-From unknown Fri Jun 24 03:55:58 -0500 2005
-From: unknown
-Date: Fri, 24 Jun 2005 03:55:58 -0500
-Subject: int(x)
-Message-ID: <20050624035558-0500@page.axiom-developer.org>
-
-
Axiom gives::

\begin{axiom}
integrate((z^a+1)^b, z)
\end{axiom}

Submitted by : (unknown) at: 2007-11-17T21:51:13-08:00 (16 years ago)
Name :
Axiom Version :
Category : Severity : Status :
Optional subject :  
Optional comment :

stack overflow on Axiom.

Reduce trys to calculate: 

int((z^a+1)^b, z);
reduce
\displaylines{\qdd \(\(z^{a} +1  

Maple gives: 

  > int((z^a+1)^b, z);

\label{eq1} z{\it hypergeom} \left( [-b,{a}^{-1}],[1+{a}^{-1}],-{z}^{a} \right) (1)

Axiom gives::

fricas
integrate((z^a+1)^b, z)
\label{eq2}\int^{ \displaystyle z}{{{\left({{\%A}^{a}}+ 1 \right)}^{b}}\ {d \%A}}(2)
Type: Union(Expression(Integer),...)

fixed by 20070915.02.tpd.patch --daly, Sat, 15 Sep 2007 22:21:31 -0500 reply
Status: open => closed