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A332522
Decimal expansion of the number u such that the line normal to the graph of y = sin x at (u, sin u) passes through (Pi/4,0).
0
4, 1, 5, 8, 5, 5, 5, 9, 6, 7, 8, 9, 8, 6, 7, 9, 8, 8, 7, 8, 8, 0, 0, 4, 8, 0, 1, 9, 8, 2, 9, 3, 9, 0, 1, 9, 0, 4, 2, 5, 8, 6, 4, 7, 0, 3, 9, 3, 3, 9, 7, 7, 2, 2, 7, 6, 0, 8, 9, 5, 8, 3, 0, 1, 9, 0, 3, 1, 1, 7, 7, 4, 1, 2, 9, 7, 7, 8, 4, 5, 2, 3, 5, 7, 3, 2
OFFSET
0,1
EXAMPLE
u = 0.4158555967898679887880048019...
MATHEMATICA
u = u /. FindRoot[0 == (-Pi/4) Sec[u] + u Sec[u] + Sin[u], {u, 0}, WorkingPrecision -> 150]
RealDigits[u][[1]]
CROSSREFS
Sequence in context: A177266 A356124 A272534 * A173386 A011443 A016687
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, May 05 2020
STATUS
approved