The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A019941 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A019941

Decimal expansion of tangent of 43 degrees.
(history; published version)

#14 by Charles R Greathouse IV at Thu Sep 08 08:44:44 EDT 2022

PROG

(MAGMAMagma) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(43*Pi(R)/180); // G. C. Greubel, Nov 24 2018

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#13 by Harvey P. Dale at Tue Aug 24 17:45:14 EDT 2021

STATUS

editing

approved

#12 by Harvey P. Dale at Tue Aug 24 17:45:11 EDT 2021

MATHEMATICA

RealDigits[Tan[43 Degree], 10, 120][[1]] (* Harvey P. Dale, Aug 24 2021 *)

STATUS

approved

editing

#11 by Alois P. Heinz at Sat Nov 24 15:40:14 EST 2018

STATUS

proposed

approved

#10 by G. C. Greubel at Sat Nov 24 15:39:29 EST 2018

STATUS

editing

proposed

#9 by G. C. Greubel at Sat Nov 24 15:39:24 EST 2018

EXAMPLE

0.932515086137661705612185627426186654353537299494023434596139258...

MATHEMATICA

RealDigits[Tan[43*Pi/180], 10, 100][[1]] (* G. C. Greubel, Nov 24 2018 *)

PROG

(PARI) default(realprecision, 100); tan(43*Pi/180) \\ G. C. Greubel, Nov 24 2018

(MAGMA) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(43*Pi(R)/180); // G. C. Greubel, Nov 24 2018

(Sage) numerical_approx(tan(43*pi/180), digits=100) # G. C. Greubel, Nov 24 2018

CROSSREFS

Cf. A019852 (sine of 43 degrees).

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#8 by Joerg Arndt at Mon Sep 01 09:50:04 EDT 2014

STATUS

proposed

approved

#7 by Ivan Panchenko at Mon Sep 01 08:22:45 EDT 2014

STATUS

editing

proposed

#6 by Ivan Panchenko at Mon Sep 01 06:25:29 EDT 2014

COMMENTS

Also the decimal expansion of cotangent of 47 degrees. - Ivan Panchenko, Sep 01 2014

#5 by Ivan Panchenko at Mon Sep 01 06:21:54 EDT 2014

LINKS

Ivan Panchenko, <a href="/A019941/b019941.txt">Table of n, a(n) for n = 0..1000</a>

STATUS

approved

editing