One of a collection of oldcalcs algorithms from the days when calculators were simple and algorithms were clever. CASC 007: Real sine For: calculator with a...
Bob Patton
patton@...
May 5, 2003 11:14 pm
430
Inspired by Bob Patton's series of "oldcalcs algorithms from the days when calculators were simple and algorithms were clever", I'm sharing my little trick...
Good one. As salesmen selling electric (as opposed to electronic) calculators, we used to use a shorter version 355/113 - this was easy to remember and gives...
Hi, I have just rescued a physically tidy anita 1011. It powers up, all digits light and you can enter all numbers, but you can not set the decimal point and...
Nothing like posting a message to have an afterthought too important to forget about. Those IC part numbers are extremely likely to indicate that the ICs are...
Thanks Nicholas, I am an electronics engineer, and could adapt modern logic, if I knew what these parts were. I know that later models of the Anita Range used...
I'm re-sending; apparently, a spam filter intercepted my original message, based on the subject line, which was "Anita 1011 calculator --help requested". If...
Again, sorry if this is a duplicate. The Subject line should not have triggered a spam filter, though. {Beginnisg original message} (Yet more...) Try turning...
Gosh, Paul, I do wish you luck. I suspected that the ICs were specials because of their numbering; MA_##, iirc; such a scheme has too few characters to be part...
HI!. I just joined this group, since I'm a fan of good old days of calculator programming. I have been looking for what was, i think, the first programmable ...
THANKS TO MANY OF YOU WHO HAVE PROVIDE MANUALS AND COPIES OF MANUALS WE NOW HAVE OVER 500 OFFICE MACHINE MANUALS AN BOOKS ON OLD TYPEWRITERS, CALCULATORS, ...
Ernie Jorgenson
ejorgens@...
May 20, 2003 3:59 am
440
Collectors in England (or possibly further afield) may like to know that there is an exhibition of mechanical calculating devices until July 2003 in the Museum...
Behavior #007 Sharp Scientific Calculators Modern Sharps have some unusual functions and nomenclature. Here are some I have found (for those of us who keep ...
Bob Patton
patton@...
May 30, 2003 12:33 am
442
Quirk #17 - Old ways are best At our local small town post office one of the servers is an older gentleman. Right on the counter he keeps and uses a dirty,...
Bob Patton
patton@...
Jun 10, 2003 12:22 am
443
On Mon, 9 Jun 2003, Bob Patton wrote: }Some of those old calcs really were rugged! You remind me of the little gems in the HP 2x series (Woodstock? I've...
... It's somewhat debatable whether the HP 49G can be called a "high-quality" handheld. The firmware is fairly good (though not well documented), but the...
I have been lurking for a few months now and really had nothing to say until now. I was watching this old movie called "Idaho Transfer". It's a low budget B...
On Tue, 10 Jun 2003, Eric Smith wrote: }Nicholas Bodley wrote: }> As I see it, low prices have savaged the market }> for really high-quality handhelds. H-P is...
Quirk #018 Super Mini Scientific The Lloyd's 615 is a shirt pocket, very thin, early LCD from 1978. It's what I call a mini scientific with x^2, sqrt, and 1/x...
Bob Patton
patton@...
Jun 22, 2003 1:03 am
448
Hello. This is my first post, i want to say hello to all, i have great respect for all the people who collect calculators. I starting my collection like a year...
Hi Jimmi, from Brisbane, Australia Can't help you much except to tell you that the Facit was an electro-mechanical calculator made in Sweden (I think) and sold...
Hi Jimmi I don't know if your calculator is mentioned there but you might like to check "History of the Facit Calculators" by Christofer Nöring at...
David Green
dgreen@...
Jun 24, 2003 3:10 pm
451
How do I unsubscribe from this list? ... __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com...
David - what an interesting site! Looks as though the answer for Jimmi is that the Facit 1125 was a "badge-engineered" Japanese Sharp electronic calc made...
Quirk #019 - Factorial or Fiction? Try this on a TI SR-50 or 50A: 9 [sqrt] and see 3. Then [x!] (factorial) You'll get a flashing 2. What happened? Well, the...
Bob Patton
patton@...
Jul 7, 2003 2:02 pm
454
Hello Bob, This is very interesting. Calculators, in common, round final value from big number of internal digits to fit to display. For example, on the TI-82...
Sergei Frolov
frs@...
Jul 7, 2003 5:33 pm
455
Interesting indeed. But, it gets more complicated. On a TI-36X SOLAR from 1980: 9 sqrt x! gives 6 and 9 sqrt - 3 = 0, but 3 1/x X 3 - 1 = -1e-12 yet 3 1/x x 3...
Bob Patton
patton@...
Jul 8, 2003 1:21 am
456
Latest Mini-manual list A mini-manual is a pure ASCII text document that describes the operation of a calculator to some degree. For an e-mail copy of any one...
Bob Patton
patton@...
Jul 15, 2003 12:34 am
457
Quirk #020 Novus 650 The Novus 650 is an early 6-digit, LED, RPN, fixed decimal low-cost machine. It had only 15 keys - no ENTER - you had to press C (clear)...
Bob Patton
patton@...
Jul 24, 2003 12:42 am
458
... [...] ... Speaking of Novus, the 850 model has an interesting after-market modification. As it came from the factory it was a very simple four-function ...
