Coordinate Transformation Program for the HP-48
1995 Ted Cashin (internet: dtbrejc@vax.dot.state.ga.us)

Given coordinates of two points in two different systems of cartesian coordinates, the program can convert the coordinates of any point in the first system to it coordinates in the second system.  Currently, the scale in both systems must be the same.  The program will check to make sure scales are consistent (the distance between points 1 and 2 in both systems must not vary by more than 0.001) and notify the user if this is not the case.
     Run COORD and input data when prompted then using the CONT button (or key command) to resume the program. Make sure you maintain the contents of the stack during these halts.  CONVT takes x and y values on the stack and converts them to the new system. RP and PR are used for rectangular to polar system conversions.  Enter x,y then RP to get q,r.  PR reverses it.

Example:

Old system points:  		(7,17) (12,15)
Points in new system:  	(18,10) (16,5)

Old point (6,6) will be new point (7,11)