Module J0Y0 in SPECFUN

• SPECFUN Information

• Components
  • Fullsource from NETLIB
  • Source from NETLIB
  • Test(J0) from NETLIB
  • Test(Y0) from NETLIB

J0Y0

 
Computes zero-order Bessel functions of the first and second kind (J0 and Y0), for
real arguments X, where 0 < X <= XMAX for Y0, and |X| <= XMAX for J0. Uses rational
function approximations that are theoretically accurate to at least 18
significant decimal digits for X <= 8, and at least 18 decimal places for X > 8.
 
Classes  :  C10a1 . Bessel functions J, Y, and H of real argument and integer
                  order
 
Type     : Fortran subroutine in SPECFUN package.
Access   : Public domain. Portable.
Precision: Single or double.
Note     : Both single and double precision versions can be extracted from the
           supplied source with simple editing changes.
 
Usage    : S = BESJ0(X); S = BESY0(X)
 
Details  : Fullsource Source Test(J0) Test(Y0)
Sites    : (1) NETLIB
 

Implementation of J0Y0 from SPECFUN on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Single or double.
Note     : Both single and double precision versions can be extracted from the
           supplied source with simple editing changes.
 
You may access components from NETLIB outside GAMS as follows.
 
   Source       : echo "send only j0y0 from specfun" | mail netlib@ornl.gov
   Fullsource   : echo "send j0y0 from specfun" | mail netlib@ornl.gov
   Test(Y0)     : echo "send y0test from specfun" | mail netlib@ornl.gov
   Test(J0)     : echo "send j0test from specfun" | mail netlib@ornl.gov