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#42 by Charles R Greathouse IV at Fri Oct 27 10:25:47 EDT 2023
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#41 by Charles R Greathouse IV at Fri Oct 27 10:25:45 EDT 2023
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| LINKS
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<a href="/index/Al#algebraic_03">Index entries for algebraic numbers, degree 3</a>
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| PROG
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(PARI) { ) default(realprecision, 20080); x=NULL; p=x^3 - 2*x - 5; rs=polroots(p); r=real(rs[1]); for (n=1, 20000, d=floor(r); r=(r-d)*10; write("b007493.txt", n, " ", d)); } \\ _)); \\ _Harry J. Smith_, May 03 2009
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| CROSSREFS
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Cf. A058297 Continued (continued fraction.).
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| STATUS
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approved
editing
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#40 by Amiram Eldar at Mon Mar 20 05:00:19 EDT 2023
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#39 by Joerg Arndt at Mon Mar 20 03:05:46 EDT 2023
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#38 by Jon E. Schoenfield at Sun Mar 19 20:22:06 EDT 2023
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#37 by Jon E. Schoenfield at Sun Mar 19 20:21:54 EDT 2023
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| NAME
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Decimal expansion of Wallis' 's number, the real root of x^3 - 2*x - 5.
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| STATUS
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proposed
editing
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#36 by Michal Paulovic at Sun Mar 19 19:44:49 EDT 2023
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#35 by Michal Paulovic at Sun Mar 19 19:44:32 EDT 2023
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| FORMULA
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Equals (5/2 - sqrt(643/108))^(1/3) + (5/2 + sqrt(643/108))^(1/3). - Michal Paulovic, Mar 19 2023
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| STATUS
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approved
editing
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#34 by Wesley Ivan Hurt at Sat Apr 02 09:36:10 EDT 2022
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#33 by Joerg Arndt at Sat Apr 02 09:33:21 EDT 2022
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