The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A198671 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A198671

Decimal expansion of the absolute minimum of cos(x)+cos(2x)+cos(3x)+cos(4x).
(history; published version)

#12 by Joerg Arndt at Mon Dec 05 10:40:13 EST 2016

STATUS

proposed

approved

#11 by Jean-François Alcover at Mon Dec 05 10:10:00 EST 2016

STATUS

editing

proposed

#10 by Jean-François Alcover at Mon Dec 05 10:09:46 EST 2016

MATHEMATICA

(* Second program: *)

Root[-125 + 600# 600x + 1227#1227x^2 + 512#512x^3 &, , 1] // RealDigits[#, 10, 99]& // First (* Jean-François Alcover, Feb 19 2013 *)

STATUS

approved

editing

Discussion

Mon Dec 05

10:10

Jean-François Alcover: Minor edit of Mma.

#9 by Bruno Berselli at Tue Feb 19 04:26:40 EST 2013

STATUS

proposed

approved

#8 by Jean-François Alcover at Tue Feb 19 03:44:31 EST 2013

STATUS

editing

proposed

#7 by Jean-François Alcover at Tue Feb 19 03:44:23 EST 2013

MATHEMATICA

Root[-125 + 600# + 1227#^2 + 512#^3 &, 1] // RealDigits[#, 10, 99]& // First (* Jean-François Alcover, Feb 19 2013 *)

STATUS

approved

editing

#6 by Russ Cox at Fri Mar 30 18:57:55 EDT 2012

AUTHOR

_Clark Kimberling (ck6(AT)evansville.edu), _, Oct 28 2011

Discussion

Fri Mar 30

18:57

OEIS Server: https://oeis.org/edit/global/285

#5 by Susanna Cuyler at Fri Oct 28 18:21:30 EDT 2011

STATUS

proposed

approved

#4 by Clark Kimberling at Fri Oct 28 17:50:04 EDT 2011

STATUS

editing

proposed

#3 by Clark Kimberling at Fri Oct 28 17:29:41 EDT 2011

NAME

Decimal expansion of the absolute minimum of cos(tx)+cos(2t2x)+cos(3t3x)+cos(4t4x).

EXAMPLE

x=1.002750019227300659428346483723194323862002750019227300659428346483723194...

min(f(x))=-1.519557881642848251369426811329...