Re: Mystery Calculator (semi RPN?) Message #2 Posted by Ernie Malaga on 18 Feb 2002, 12:36 a.m., in response to message #1 by aruid
From what you tell us, it seems like this calculator uses "adding machine logic" like the HP10A did many moons ago. In the HP10A, the += key (the same key for both functions) was used to either complete a pending multiplication or division, or to keep accumulating numbers (adding them).
If the calculator you have follows that logic, then the = key must be accumulating, and that's why 6  3 = gives a 3: you're subtracting 6 (6 ) and then adding 3 (3 =), giving a net result of 6 + 3 = 3.
On the other hand, perhaps the calculator is just broken. 8^)
