[go: up one dir, main page]

login
A115369
Decimal expansion of first zero of BesselJ(1,z).
18
3, 8, 3, 1, 7, 0, 5, 9, 7, 0, 2, 0, 7, 5, 1, 2, 3, 1, 5, 6, 1, 4, 4, 3, 5, 8, 8, 6, 3, 0, 8, 1, 6, 0, 7, 6, 6, 5, 6, 4, 5, 4, 5, 2, 7, 4, 2, 8, 7, 8, 0, 1, 9, 2, 8, 7, 6, 2, 2, 9, 8, 9, 8, 9, 9, 1, 8, 8, 3, 9, 3, 0, 9, 5, 1, 9, 0, 1, 1, 4, 7, 0, 2, 1, 4, 1, 1, 2, 8, 7, 4, 7, 5, 7, 4, 2, 3, 1, 2, 6, 7, 2, 4, 4, 7
OFFSET
1,1
COMMENTS
Also the first root of the sinc(2,x) function, that is, the radial component of the 2D Fourier transform of a 2-dimensional unit disc. - Stanislav Sykora, Nov 14 2013
Also the first root of the derivative of BesselJ_0. - Jean-François Alcover, Jul 01 2015
EXAMPLE
3.8317059702075123156...
MATHEMATICA
BesselJZero[1, 1] // N[#, 105]& // RealDigits // First (* Jean-François Alcover, Feb 06 2013 *)
PROG
(PARI) solve(x=3, 4, besselj(1, x)) \\ Charles R Greathouse IV, Feb 19 2014
(PARI) besseljzero(1) \\ Charles R Greathouse IV, Aug 06 2022
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Jan 21 2006
STATUS
approved