Goal:  Compute 15 stage order 6 schemes to arbitrary precision.
====

                            Ren-Cang Li, June 1, 1996
                            na.rcli@na-net.ornl.gov

Files in this directory:
=======================

   Maple Code:
   ----------

      Get_s15odr6    ---  Driver routine to get the scheme s15odr6.

      Get_All        ---  Driver routine to get as many as 16 15 stage
                          order 6 schemes.

      s15odr6Eq      ---  Define determining equations.

      Newton         ---  Newton iteration to compute a real solution to
                          the determining equations, given a good initial
                          guess.

      InitialCxsCys  ---  Provide initial guesses to Newton

      WriteItOut     ---  Output a computed solution.

   Output:  
   -------
            s15odr6 by Get_s15odr6, containing three schemes;
            s15odr6_All by Get_All, containing 16 schemes.

To Run: 
=======

   After Maple prompt, type   read('Get_s15odr6');            or
                              read('Get_All');

Comments: 

       1) The code as it is operate use 100 decimal digits, while only
          dump 20 decimal digits of final solutions. To change these,
          please go to Get_s15odr6 or Get_All, where 

              Digits    and   DumpDigits

          are initialized.

       2) s15odr6 has also been obtained by D. Okunbor and R. Skeel who
          calculated it correctly up to 11 decimal digits.
