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Re: qfbsolve

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  • djbroadhurst
    ... The Cornacchia-Smith algorithm is given by Henri Cohen as CCANT 1.5.2 and by also by Crandall and Pomerance 2.3.12. David
    Message 1 of 5 , Oct 2, 2010
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      --- In primenumbers@yahoogroups.com,
      "Aldrich" <aldrich617@...> wrote:

      > This is interesting material, but it does not really answer
      > any of my questions. I'll check to see if any of references
      > are more illuminating.

      The Cornacchia-Smith algorithm is given by Henri Cohen
      as CCANT 1.5.2 and by also by Crandall and Pomerance 2.3.12.

      David
    • djbroadhurst
      ... Exercise: Find two pairs of positive integers (x,y) such that 5*x^2 + 5*x*y + y^2 = (137^137 + 1992)*(137^137 + 3464) Comment: This exercise may solved in
      Message 2 of 5 , Oct 2, 2010
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        --- In primenumbers@yahoogroups.com,
        "djbroadhurst" <d.broadhurst@...> wrote:

        > The Cornacchia-Smith algorithm is given by Henri Cohen
        > as CCANT 1.5.2 and by also by Crandall and Pomerance 2.3.12.

        Exercise: Find two pairs of positive integers (x,y) such that
        5*x^2 + 5*x*y + y^2 = (137^137 + 1992)*(137^137 + 3464)

        Comment: This exercise may solved in 10 milliseconds.

        David
      • Aldrich
        ... Looks like a special case, a put-up job as the posties say. quibble, quibble. a.
        Message 3 of 5 , Oct 5, 2010
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          --- In primenumbers@yahoogroups.com, "djbroadhurst" <d.broadhurst@...> wrote:
          >
          >
          >
          > --- In primenumbers@yahoogroups.com,
          > "djbroadhurst" <d.broadhurst@> wrote:
          >
          > > The Cornacchia-Smith algorithm is given by Henri Cohen
          > > as CCANT 1.5.2 and by also by Crandall and Pomerance 2.3.12.
          >
          > Exercise: Find two pairs of positive integers (x,y) such that
          > 5*x^2 + 5*x*y + y^2 = (137^137 + 1992)*(137^137 + 3464)
          >
          > Comment: This exercise may solved in 10 milliseconds.
          >
          > David
          >

          Looks like a special case, a put-up job as the posties
          say. quibble, quibble.

          a.
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