A332521 - OEIS

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A332521

Decimal expansion of the number u such that the line normal to the graph of y = sin x at (u, sin u) passes through (2,0).

2, 4, 8, 3, 8, 0, 4, 0, 1, 0, 2, 9, 4, 7, 4, 0, 9, 0, 1, 4, 7, 3, 2, 5, 7, 3, 6, 9, 1, 4, 8, 6, 8, 8, 9, 9, 2, 5, 1, 8, 5, 8, 3, 0, 5, 4, 8, 9, 7, 5, 2, 3, 3, 2, 3, 6, 6, 6, 7, 5, 2, 8, 0, 6, 5, 4, 3, 5, 8, 0, 1, 5, 0, 8, 6, 6, 8, 9, 4, 8, 0, 9, 0, 1, 7, 1

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,1

LINKS

Table of n, a(n) for n=0..85.

EXAMPLE

u = 0.5530300788531359553083686485...

MATHEMATICA

u = u /. FindRoot[0 == - 2 Sec[u] + u Sec[u] + Sin[u], {u, 0}, WorkingPrecision -> 150]

RealDigits[u][[1]]

CROSSREFS

Cf. A332500, A332507.