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   sci.math.symbolic      Symbolic algebra discussion      10,432 messages   

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   Message 9,781 of 10,432   
   Albert Rich to clicl...@freenet.de   
   Re: More teething help   
   24 Jan 18 23:25:01   
   
   From: Albert_Rich@msn.com   
      
   On Wednesday, January 24, 2018 at 8:55:00 PM UTC-10, clicl...@freenet.de wrote:   
   > clicliclic@freenet.de schrieb:   
   > >   
   > > [...]   
   > >   
   > > As regards pseudo-elliptics involving square roots, FriCAS appears to   
   > > be reliable: earlier failures for many of the Masser-Zanier integrals   
   > > could be attributed to silly coding bugs rather than design   
   > > oversights. Is there any moderately-sized square-root pseudo-elliptic   
   > > integral on which FriCAS is still known to fail?   
   > >   
   >   
   > Yes, there is (Timofeev Chapter 6 Example 17, on page 328):   
   >   
   >   INT(x^4/(SQRT(10) - x^2)^(9/2), x) = ?   
   >   
   > Boooooooooooo,   
   >   
   > Martin :(.   
      
   Since the radical does not involve a cubic or quartic polynomial, this   
   integral does not even rate as an elliptic or pseudo-elliptic.   
      
   Albert   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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