|
| |
|
|
A073743
|
|
Decimal expansion of cosh(1).
|
|
12
| |
|
|
1, 5, 4, 3, 0, 8, 0, 6, 3, 4, 8, 1, 5, 2, 4, 3, 7, 7, 8, 4, 7, 7, 9, 0, 5, 6, 2, 0, 7, 5, 7, 0, 6, 1, 6, 8, 2, 6, 0, 1, 5, 2, 9, 1, 1, 2, 3, 6, 5, 8, 6, 3, 7, 0, 4, 7, 3, 7, 4, 0, 2, 2, 1, 4, 7, 1, 0, 7, 6, 9, 0, 6, 3, 0, 4, 9, 2, 2, 3, 6, 9, 8, 9, 6, 4, 2, 6, 4, 7, 2, 6, 4, 3, 5, 5, 4, 3, 0, 3, 5, 5, 8, 7, 0, 4
(list; constant; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| Also decimal expansion of cos(i). - N. J. A. Sloane, Feb 12 2010.
cosh(x) = (e^x + e^(-x))/2
|
|
|
REFERENCES
| S. Selby, editor, CRC Basic Mathematical Tables, CRC Press, 1970, p. 218.
|
|
|
LINKS
| Eric Weisstein's World of Mathematics, Hyperbolic Cosine
Eric Weisstein's World of Mathematics, Hyperbolic Functions
Eric Weisstein's World of Mathematics, Factorial Sums
|
|
|
EXAMPLE
| 1.54308063481524377847790562075...
|
|
|
PROG
| (PARI) cosh(1)
|
|
|
CROSSREFS
| Cf. A068118 (continued fraction), A073746 (sech(1)=1/A073743), A073742 (sinh(1)), A073744 (tanh(1)), A073745 (csch(1)), A073747 (coth(1)).
Sequence in context: A019712 A020799 A199432 * A021652 A022961 A023447
Adjacent sequences: A073740 A073741 A073742 * A073744 A073745 A073746
|
|
|
KEYWORD
| cons,nonn
|
|
|
AUTHOR
| Rick L. Shepherd (rshepherd2(AT)hotmail.com), Aug 07 2002
|
| |
|
|
