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RPN scientific calculator firmware for $13 calculator kit
10-22-2019, 08:42 PM (This post was last modified: 10-22-2019 08:44 PM by toml_12953.)
Post: #26
toml_12953 Offline
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Joined: Dec 2013
RE: RPN scientific calculator firmware for $13 calculator kit
OK, now I KNOW the HP 42S doesn't do this!

Press 8
Press Enter
Press 3
Press +
Display shows
0
11
Press Shift CLx
Display shows
0
0
Press -
Display shows
0
-11

Huh?
The HP 42S shows 0 as it should. The X and Y registers should have 0 in them after the CLx and 0 - 0 = 0 (AFAIK)
Tom L
Cui bono?
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RE: RPN scientific calculator firmware for $13 calculator kit - toml_12953 - 10-22-2019 08:42 PM



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