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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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