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Manual Reference Pages  - bessel_j0 (3fortran)

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NAME

BESSEL_J0(3) - [MATHEMATICS] Bessel function of the first kind of order 0

SYNOPSIS

result = bessel_j0(x)

         elemental real(kind=KIND) function bessel_j0(x)

          real(kind=KIND),intent(in) :: x

CHARACTERISTICS

o	KIND may be any KIND supported by the real type.
o	The result is the same type and kind as X.

DESCRIPTION

BESSEL_J0(3) computes the Bessel function of the first kind of order 0 of X.

OPTIONS

o	X : The value to operate on.

RESULT

the Bessel function of the first kind of order 0 of X. The result lies in the range -0.4027 <= BESSEL(0,X) <= 1.

EXAMPLES

Sample program:

    program demo_bessel_j0
    use, intrinsic :: iso_fortran_env, only : real32, real64, real128
       implicit none
       real(kind=real64) :: x
       x = 0.0_real64
       x = bessel_j0(x)
       write(*,*)x
    end program demo_bessel_j0

Results:

      > 1.0000000000000000

STANDARD

Fortran 2008

SEE ALSO

BESSEL_J1(3), BESSEL_JN(3), BESSEL_Y0(3), BESSEL_Y1(3), BESSEL_YN(3)

Fortran intrinsic descriptions

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Nemo Release 3.1

bessel_j0 (3fortran)

November 02, 2024

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