Platform

Win32 and x64

Purpose

To compute the Bessel function of the first kind of order N.

Class

Elemental function

Syntax

REAL FUNCTION BESSEL_JN(N,X)
INTEGER N
REAL X

Description

The return value is a scalar of type REAL and of the same kind as X.
Note that this function does not fully implement the Fortran 2008 standard in that it can only take two arguments and N must be a scalar value.