J0,J1,JN,Y0,Y1,YN (3sciport)

Returns a Bessel function

SYNOPSIS

  result = J0( x )
  result = J1( x )
  result = JN( n, x )
  result = Y0( x )
  result = Y1( x )
  result = YN( n, x )

FUNCTION VALUE

  result          Real.
                  The real Bessel function result from one of the functions
                  J0, J1, JN, Y0, Y1, or YN.

ARGUMENTS

  n               Integer.
                  Used by JN and YN as the integer order of the Bessel
                  function.

  x               Real.
                  The input argument. The value of x passed to Y0, Y1, or YN
                  must be positive

DESCRIPTION

  Functions J0, J1, and JN return Bessel functions of the first kind for
  orders of zero, one, or any integer, respectively.

  Functions Y0, Y1, and YN return Bessel functions of the second kind for
  orders of zero, one, or any integer, respectively.

  For equations and other information, see Volume 3: UNICOS Math and
  Scientific Library Reference Manual SR-2081 7.0, Cray Research, Inc.