A019899 Decimal expansion of tangent of 1 degree.

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Algebraic integer of degree 24. - Charles R Greathouse IV, May 15 2019

Examples

			0.0174550649282175857651288952197278243141...
		

References

• Mohammad K. Azarian, Forty-Five Nested Equilateral Triangles and cosecant of 1 degree, Problem 813, College Mathematics Journal, Vol. 36, No. 5, November 2005, p. 413-414. Solution published in Vol. 37 , No. 5, November 2006, pp. 394-395.

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000
• Index entries for algebraic numbers, degree 24.

Programs

Mathematica

Join[{0},RealDigits[Tan[1 Degree],10,120][[1]]] (* Harvey P. Dale, Mar 30 2013 *)

PARI

tan(Pi/180) \\ Charles R Greathouse IV, May 15 2019

Extensions

Corrected by Mohammad K. Azarian, Dec 15 2005