Entering (and losing) programs on HP 48

[Dave Britten]

When I'm writing RPL programs, I almost always start by storing an empty program (<< >>) into an appropriately named variable, then putting that name on the stack and invoking EDIT/VISIT. Then you'll get the full-screen editor, and pressing ENTER to save the program will check the syntax and store it directly back into the variable, rather than leaving it on the stack and vulnerable to some mishap.