bessel_j0(3f) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the first kind of order 0
result = bessel_j0(x)
bessel_j0(x) computes the [[Bessel function]] of the first kind of order 0 of X.
X The type shall be REAL.
The return value is of type REAL and lies in the range -0.4027 <= Bessel(0,x) <= 1. It has the same kind as X.
Sample program:
program demo_besj0 use, intrinsic :: iso_fortran_env, only : real_kinds, & & real32, real64, real128 implicit none real(kind=real64) :: x = 0.0_real64 x = bessel_j0(x) end program demo_besj0
[[Fortran 2008]] and later
[[Elemental procedure|Elemental function]]
bessel_j1(3), bessel_jn(3), bessel_y0(3), bessel_y1(3), bessel_yn(3)
bessel_j0 (3) | March 11, 2021 |