"Nasser M. Abbasi" schrieb:   
   >   
   > On 3/16/2018 10:18 AM, clicliclic@freenet.de wrote:   
   > >   
   > > A different problem for a similar integrand:   
   > >   
   > > setSimplifyDenomsFlag(true)   
   > >   
   > > integrate((5*x-9*sqrt(6)+26)/((x^2-4*x-50)*sqrt(x^3-30*x-56)), x)   
   > >   
   > > on the FriCAS web interface currently results in:   
   > >   
   > >>> Error detected within library code:   
   > >     catdef: division by zero   
   > >   
   > > The FriCAS )version command reports 1.3.2. Can earlier or later   
   > > versions decide if this integral is elementary or not?   
   > >   
   >   
   > Same thing on 1.3.3 on Linux:   
   >   
   > >fricas   
   >                         FriCAS Computer Algebra System   
   >                              Version: FriCAS 1.3.3   
   >                     Timestamp: Tue Mar 13 22:58:43 CDT 2018   
   > (1) -> setSimplifyDenomsFlag(true)   
   >     (1)  false   
   > (3) -> ii:=integrate((5*x-9*sqrt(6)+26)/((x^2-4*x-50)*sqrt(x^3-30*x-56)), x)   
   >   
   >     >> Error detected within library code:   
   >     catdef: division by zero   
   >   
      
   Thanks. "Is there any moderately-sized square-root pseudo-elliptic   
   integral on which FriCAS is still known to fail?" I asked a while ago.   
   The present integral would be one if it is integrable in elementary   
   terms.   
      
   Martin.   
      
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