login
A195773
Decimal expansion of arctan(6).
4
1, 4, 0, 5, 6, 4, 7, 6, 4, 9, 3, 8, 0, 2, 6, 9, 7, 8, 0, 9, 5, 2, 1, 9, 3, 4, 0, 1, 9, 9, 5, 8, 0, 7, 9, 8, 8, 1, 0, 0, 1, 9, 8, 0, 3, 9, 2, 2, 2, 5, 2, 5, 0, 9, 1, 4, 6, 9, 4, 3, 7, 8, 6, 6, 1, 4, 2, 7, 6, 2, 5, 4, 0, 9, 6, 3, 2, 9, 9, 3, 5, 7, 8, 3, 9, 1, 3, 0, 2, 7, 4, 7, 7, 2, 3, 5, 8, 4, 2, 6
OFFSET
1,2
FORMULA
From Amiram Eldar, Jun 05 2021: (Start)
Equals Pi/2 - A195774.
Equals arcsin(6/sqrt(37)) = arccos(1/sqrt(37)) = arccot(1/6). (End)
EXAMPLE
arctan(6)=1.40564764938026978095219340199580798810...
MATHEMATICA
r = 6;
N[ArcTan[r], 100]
RealDigits[%] (* A195773 *)
N[ArcCot[r], 100]
RealDigits[%] (* A195774 *)
N[ArcSec[r], 100]
RealDigits[%] (* A195775 *)
N[ArcCsc[r], 100]
RealDigits[%] (* A195776 *)
PROG
(PARI) atan(6) \\ Charles R Greathouse IV, Nov 20 2024
CROSSREFS
KEYWORD
nonn,cons,changed
AUTHOR
Clark Kimberling, Sep 24 2011
STATUS
approved