HMS commands

[DrD]

It may be around page 15 of the user guide, but you can experiment with the [shift][ab/c] key for converting decimal degrees, to/from hours mins secs.

Emulator:
Adding or subtracting from the current answer is just a matter of using the [+] or qwerty [-] (not numpad [-], which is the change sign key). The current answer is just above the command entry line. Using corresponding keys on the Hardware Calc.

If 45°30'00" is in the current answer, then in the command line: [+] 45.5 adds to the current answer => 91.00 or [shift][ab/c] for 91°00'00"

-Dale-