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A330119
Degrees-based analog to the Dottie number (A003957).
2
9, 9, 9, 8, 4, 7, 7, 4, 1, 5, 3, 1, 0, 8, 8, 1, 1, 2, 9, 5, 9, 8, 1, 0, 7, 6, 8, 6, 7, 9, 7, 9, 9, 7, 9, 9, 1, 8, 1, 8, 7, 2, 5, 8, 6, 1, 5, 2, 7, 7, 5, 8, 8, 3, 7, 5, 4, 6, 6, 9, 8, 6, 1, 1, 4, 2, 9, 5, 3, 8, 5, 3, 3, 1, 2, 1, 6, 3, 6, 3, 5, 5, 7, 8, 9, 5, 8
OFFSET
0,1
COMMENTS
Using a calculator that has a cosine button and is set to calculate the values of trigonometric functions with the angles measured in degrees, start with any number and repeatedly hit the cosine button; the result will always converge to this value.
(If the calculator is set to calculate the values of trigonometric functions with the angles measured in radians rather than degrees, repeatedly hitting the cosine button will result in the value given at A003957.)
EXAMPLE
0.9998477415310881129...
PROG
(PARI) solve(x=0, 1, cos(Pi*x/180)-x) \\ Michel Marcus, Dec 02 2019
CROSSREFS
Cf. A003957.
Sequence in context: A346437 A346260 A019898 * A258815 A114054 A347220
KEYWORD
nonn,cons
AUTHOR
Jon E. Schoenfield, Dec 01 2019
STATUS
approved