Re: Suspension losses

On Fri, 10 Jan 2025 05:19:53 -0500, zen cycle
<funkmasterxx@hotmail.com> wrote:

On 1/10/2025 12:20 AM, Jeff Liebermann wrote:

On Sat, 4 Jan 2025 20:51:16 -0500, Frank Krygowski
<frkrygow@sbcglobal.net> wrote:
 

On 1/4/2025 7:28 PM, Jeff Liebermann wrote:

>
I'll look in my collection and see if I have an HP11C.  Offhand, I
don't think so.  There are some on eBay.  The one's that offer the
least risk and are likely to work are $75 and up.

>
No need to check. When that calculator got stolen, the guys running the
company bought me a replacement. By then, the 11C was no longer
marketed, so I ended up with an HP 32S II, one of the few RPN machines
still in their line, IIRC.
>
The 11C seemed bulletproof, but this 32S is a bit flaky. Its the
calculator I keep in my workshop drawer, so it's not used very often.
But it seems that at least a third of the time I want to use it, it
refuses to turn on. I've slipped a little note in its case with notes on
the recovery procedure.
>
When it flakes out, I'll usually just pull out my Android phone and run
the HP 48G emulator. My main complaint about that one is that it isn't
really programmable - or at least, it doesn't retain programs when the
app is killed.

 
I finally remembered to look into my boxes of HP calculators.  I don't
have an HP 32SII or something comparable.  In the scientific
calculator section, I found an HP 31E and a 32E.  Both of these are
low end RPN calculators with LED displays.  The 31E had a battery leak
at some time in the past and will require that I do some battery
contact rebuilding.  I can provide a complete list of what I have in
stock.
 

I never could get used to the RPN data entry method

Humans tend to prefer whatever technology they learned first.  My
first calculator was basically a mechanical "adding machine".
<https://www.google.com/search?num=10&q=marchant+adding+machine&udm=2>
I eventually ended up with an HP-35 RPN calculator and loved it.  RPN
is easy, if you think like a computer that stores intermediate results
in a stack.  At home, I use an HP-41CX or an emulator on my phone and
PC.  There are benefits and detriments to both algebraic and RPN
notation.  If we can become accustomed to QWERTY keyboards designed to
slow down typing, we can get used to anything.  I can switch back and
forth between algebraic and RPN.  Algebraic for financial calculations
and RPN for engineering.  Evaluating long equations is easier (for me)
using RPN.


--
Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann      AE6KS    831-336-2558