A330119 Degrees-based analog to the Dottie number (A003957).

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.)

Links

Table of n, a(n) for n=0..86.

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

Adjacent sequences: A330116 A330117 A330118 * A330120 A330121 A330122

Keyword

nonn,cons

Author

Jon E. Schoenfield, Dec 01 2019

Status

approved