best way to clear a hp42s?

General discussion about calculators, SwissMicros or otherwise
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dm319
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Location: Birmingham, UK

best way to clear a hp42s?

Post by dm319 »

Always thought it was a bit strange that clearing the stack was a three-button operation. Not sure whether doing that or <-/0 ENTER ENTER ENTER is better.

Does anyone have a better way? I like my 12c's ability to clear with just f - sigma.
SN:09075
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Drchiper
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Re: best way to clear a hp42s?

Post by Drchiper »

The benefit of 0 ENTER ENTER ENTER is that it works on all HP related RPN calculators.
The recommended way for the 42 is f CLEAR CLST which saves 1 key press.
The shortest I know for for instance the HP-15C is [-][ON], clearing all memory hence also the stack :D
I'm sure the HP-42S has (and DM42 will have) something similar, but I do not have those (yet), so cannot comment on them.
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RAPo
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Re: best way to clear a hp42s?

Post by RAPo »

I made a little program called CA. It executes stack+alpha clear, reset flags and display functionality according to my standards. Pressing xeq CA is all what you need.
DM41X beta: SN00018.
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
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