gin & pez;
It has been a productive day for me today. I just completed getting "open-watcom-f77-win32-1.9" installed and running, and I was able to successfully compile the files from DERDEI20191001, run the executable, and produced the PDEIS and RDEIS uncertainty output files, several 3D object files, and multiple others. I now have only to bridge the interface from the Fortran output into wxMaxima to enable GNU plotting, and I soon will be able to replicate your work from start to finish.
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73
Gary, N3GO
