The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A010524 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A010524

Decimal expansion of square root of 72.
(history; published version)

#30 by Charles R Greathouse IV at Mon Aug 21 10:26:06 EDT 2023

STATUS

editing

approved

#29 by Charles R Greathouse IV at Mon Aug 21 10:26:05 EDT 2023

LINKS

<a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>

PROG

(PARI) { default(realprecision, 20080); x=sqrt(72); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010524.txt", n, " ", d)); } \\ Harry J. Smith, Jun 08 2009

STATUS

approved

editing

#28 by Susanna Cuyler at Tue Mar 09 20:15:33 EST 2021

STATUS

reviewed

approved

#27 by Amiram Eldar at Tue Mar 09 17:23:07 EST 2021

STATUS

proposed

reviewed

#26 by Michel Marcus at Tue Mar 09 17:04:05 EST 2021

STATUS

editing

proposed

#25 by Michel Marcus at Tue Mar 09 17:04:01 EST 2021

CROSSREFS

Cf. A040063 (continued fraction), A002193, A195284.

STATUS

proposed

editing

#24 by Omar E. Pol at Tue Mar 09 14:16:03 EST 2021

STATUS

editing

proposed

#23 by Omar E. Pol at Tue Mar 09 14:15:44 EST 2021

FORMULA

Equals 6*A002193. - Omar E. Pol, Mar 09 2021

CROSSREFS

Cf. A040063 (continued fraction), A002193.

STATUS

approved

editing

#22 by Jon E. Schoenfield at Sun Dec 20 03:25:40 EST 2015

STATUS

editing

approved

#21 by Jon E. Schoenfield at Sun Dec 20 03:25:38 EST 2015

COMMENTS

Continued fraction expansion is 8 followed by {2, 16} repeated. [From _- _Harry J. Smith_, Jun 08 2009]

Decimal expansion of shortest length, (B), of segment from side BC through incenter to side BA in right triangle ABC with sidelengths (a,b,c)=(8,15,17), see A195284. - _Clark Kimberling, _, Sep 14 2011

Decimal expansion of shortest length, (B), of segment from side BC through incenter to side BA in right triangle ABC with sidelengths (a,b,c)=(7,24,25). - _Clark Kimberling_, Sep 14 2011

Clark Kimberling, Sep 14 2011

PROG

(PARI) { default(realprecision, 20080); x=sqrt(72); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010524.txt", n, " ", d)); } [From _\\ _Harry J. Smith_, Jun 08 2009]

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing