cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A195365 Decimal expansion of shortest length, (A), of segment from side AB through incenter to side AC in right triangle ABC with sidelengths (a,b,c)=(sqrt(2),sqrt(3),sqrt(5)).

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%I A195365 #9 Dec 24 2017 09:27:17
%S A195365 9,6,6,2,7,3,9,6,1,5,7,6,7,1,2,9,5,7,2,0,9,3,8,8,6,4,9,0,0,9,2,1,2,4,
%T A195365 8,1,6,3,4,4,4,6,9,2,6,1,3,1,5,3,9,1,4,2,4,2,6,3,4,9,7,1,5,7,5,1,3,2,
%U A195365 2,7,8,5,0,7,6,4,4,7,6,0,1,3,2,0,4,7,0,9,0,0,1,3,2,9,1,2,4,2,1,1
%N A195365 Decimal expansion of shortest length, (A), of segment from side AB through incenter to side AC in right triangle ABC with sidelengths (a,b,c)=(sqrt(2),sqrt(3),sqrt(5)).
%C A195365 See A195284 for definitions and a general discussion.
%H A195365 G. C. Greubel, <a href="/A195365/b195365.txt">Table of n, a(n) for n = 0..10000</a>
%e A195365 (A)=0.96627396157671295720938864900921248163444...
%t A195365 a = Sqrt[2]; b = Sqrt[3]; c = Sqrt[5];
%t A195365 f = 2 a*b/(a + b + c);
%t A195365 x1 = Simplify[f*Sqrt[a^2 + (b + c)^2]/(b + c) ]
%t A195365 x2 = Simplify[f*Sqrt[b^2 + (c + a)^2]/(c + a) ]
%t A195365 x3 = f*Sqrt[2]
%t A195365 N[x1, 100]
%t A195365 RealDigits[%]    (* (A) A195365 *)
%t A195365 N[x2, 100]
%t A195365 RealDigits[%]    (* (B) A195366 *)
%t A195365 N[x3, 100]
%t A195365 RealDigits[%]    (* (C) A195367 *)
%t A195365 N[(x1 + x2 + x3)/(a + b + c), 100]
%t A195365 RealDigits[%]     (* Philo(ABC,I) A195368 *)
%Y A195365 Cf. A195284, A195366, A195367, A195368.
%K A195365 nonn,cons
%O A195365 0,1
%A A195365 _Clark Kimberling_, Sep 16 2011