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A019812 Decimal expansion of sine of 3 degrees. 0
0, 5, 2, 3, 3, 5, 9, 5, 6, 2, 4, 2, 9, 4, 3, 8, 3, 2, 7, 2, 2, 1, 1, 8, 6, 2, 9, 6, 0, 9, 0, 7, 8, 4, 1, 8, 7, 3, 1, 0, 1, 8, 2, 5, 3, 9, 4, 0, 1, 6, 4, 9, 2, 0, 4, 8, 3, 5, 0, 9, 3, 8, 1, 5, 9, 9, 8, 5, 7, 1, 0, 4, 6, 4, 1, 7, 5, 4, 5, 4, 6, 8, 6, 4, 4, 6, 4, 5, 9, 8, 8, 1, 1, 8, 8, 6, 9, 3, 9, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

An algebraic number of degree 16. - Charles R Greathouse IV, Nov 02 2012

LINKS

Table of n, a(n) for n=0..99.

Dr. Rob, The Math Forum at Drexel, The Exact Value of the Sine of 1 Degree

Scott Surgent, Exact values of the sine and cosine functions in increments of 3 degrees, 2012

Wikipedia, Exact trigonometric constants

FORMULA

Equals cos(87 degrees) = cos(29*Pi/60) = sin(Pi/60) = sqrt(8-sqrt(3)-sqrt(15)-sqrt(10-2*sqrt(5)))/4 (an intermediate calculation by Dr. Rob - see Math Forum link). - Rick L. Shepherd, Jul 03 2006

EXAMPLE

0.052335956242943832722118629609...

CROSSREFS

Cf. A019896 (cosine of 3 degrees), A019901 (tangent of 3 degrees), A019985 (cotangent of 3 degrees).

Sequence in context: A071216 A069483 A011226 * A222222 A071544 A031285

Adjacent sequences:  A019809 A019810 A019811 * A019813 A019814 A019815

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified April 20 18:30 EDT 2014. Contains 240820 sequences.