RMSCOORD is a coordinate conversion program, featuring Rectangular to Polar, 
and Polar to Rectangular changes. It has a graphical user interface allowing
point & click selection of individual coordinates, and files of data.
Download the ZIP file to a temporary directory or high density floppy, & 
unzip using the -d flag. 
eg PKUNZIP -d COORDS.ZIP  Then read the file INSTALL.TXT
