ID#:                C00572I308300
                                  RSIC #       :      CCC-572
1 DS/HD 5.25" diskette (1.2mb)    CODE PKG NAME:      DIFMOD
                                  COMPUTER:           IBM 3083
                                  PACKAGED:           12/10/90
                                  MOST RECENT UPDATE:
*****************************************************************
 DESCRIPTION                                     MODE      File size
                                                           bytes
*****************************************************************

1.  README.RSI - RSIC information                ASCII         640
2.  PDIFMOD.EXE - compressed file                BINARY     417315
    which contains the list below
    when de-compressed.  To
    decompress,  place diskette in
    drive and type PDIFMOD

*****************************************************************
1.  DIFMOD.INF   - information file              ASCII       4960
2.  DIFMOD.FOR   - FORTRAN 77 source             ASCII     323326
3.  DDGT3.FOR    - FORTRAN 77 source (math)      ASCII       7674
4.  DUMMY.FOR    - FORTRAN 77 dummy sources      ASCII        324
5.  SAMPLE1.DAT  - sample input 1                ASCII        819
6.  SAMPLE2.DAT  - sample input 2                ASCII        815
7.  SAMPLE3.DAT  - sample input 3                ASCII        819
8.  SAMPLE4.DAT  - sample input 4                ASCII        815
9.  SAMPLE5.DAT  - sample input 5                ASCII        823
10. SAMPLE6.DAT  - sample input 6                ASCII        820
11. SAMPLE7.DAT  - sample input 7                ASCII        805
12. SAMPLE8.DAT  - sample input 8                ASCII        817
13. SAMPLE9.DAT  - sample input 9                ASCII        825
14. SAMPLE10.DAT  - sample input 10              ASCII        886
15. NEA1.JCL     - JCL used at NEA Data Bank     ASCII       3497
16. NEA2.JCL     - JCL procedures used           ASCII       2541
17. AUTHOR.JCL   - JCL used by author            ASCII       1794
18. SAMPLE.OUT   - sample output for 1-10        ASCII    1796850
19. SAMPLE9.OUT  - author's output for 9         ASCII     178045
20. SAMPLE10.OUT - author's output for 10        ASCII     312905
21. PLOT.FOR     - FORTRAN 77 PLOT source        ASCII      43132
22. PLOT.DAT     - sample PLOT input             ASCII       1692
23. PLOT.JCL     - sample PLOT JCL               ASCII       1050
***********************************************************************

Note:  The code was not tested at RSIC,  but was tested at NEA Data
       Bank,  France on an IBM 3083 under the MVS/XA  operating system,
       using the VS FORTRAN  compiler.