Re: [Elecraft] RPN Calc App For Android

There were slide rules that included linear as well as logarithmic scales, so you could do addition and subtraction. An example is the Pickett "Basic Math Rule" (one sided, white plastic; instruction manual copyright 1965). It included linear X and Y scales. It cost under $2 when new.

Re: [Elecraft] RPN Calc App For Android

No No ... maintain it was a joke to stir up the kids! 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County Byron Servies wrote on 2/6/2022 3:16 PM: Man, you are all going to laugh me off the platform for that dumb "add" comment. Let me have it. I deserve it. On Sun, Feb 6, 2022 at 3:11 PM

Re: [Elecraft] RPN Calc App For Android

Actually you are correct, you are adding.  However, you are adding logarithms.    73 and have fun,   Kevin.  KD5ONS On 2/6/22 15:16, Byron Servies wrote: Man, you are all going to laugh me off the platform for that dumb "add" comment. Let me have it. I deserve it. On Sun, Feb 6, 2022

Re: [Elecraft] RPN Calc App For Android

Man, you are all going to laugh me off the platform for that dumb "add" comment. Let me have it. I deserve it. On Sun, Feb 6, 2022 at 3:11 PM Byron Servies wrote: > > When the Oughtred Society first published their slide rule reference > in 2005 I remember you could get it in a bundle with a

Re: [Elecraft] RPN Calc App For Android

When the Oughtred Society first published their slide rule reference in 2005 I remember you could get it in a bundle with a copy of the journal and a Nestler Polymath Duplex 6". Around the same time I purchased a K 4181-3 Log Log Duplex Decitrig. Unfortunately my alma mater stopped having "slide

Re: [Elecraft] RPN Calc App For Android

n.qth.net] On Behalf Of SAMUEL L ROWE via Elecraft Sent: Sunday, February 06, 2022 10:55 AM To: Bill Frantz; Elecraft Subject: Re: [Elecraft] RPN Calc App For Android I used a 6" Pickett log-log at NC State in the early 60's. Easier to carry than my full size Post. Sam KG9NG

Re: [Elecraft] RPN Calc App For Android

M To: Bill Frantz; Elecraft Subject: Re: [Elecraft] RPN Calc App For Android I used a 6" Pickett log-log at NC State in the early 60's. Easier to carry than my full size Post. Sam KG9NG From: elecraft-boun...@mailman.qth.net on behalf of Bill Frantz Sent: Sun

Re: [Elecraft] RPN Calc App For Android

o judge what number of insignificant digits to discard/round off. LOL Jack - KD4IZ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Fred Jensen Sent: Saturday, February 5, 2022 22:09 To: Reflector Elecraft Subject: Re: [Elecraft] RPN Calc App For Android I still h

Re: [Elecraft] RPN Calc App For Android

I used a 6" Pickett log-log at NC State in the early 60's. Easier to carry than my full size Post. Sam KG9NG From: elecraft-boun...@mailman.qth.net on behalf of Bill Frantz Sent: Sunday, February 6, 2022 9:50 AM To: Elecraft Subject: Re: [Elecraft] RPN

Re: [Elecraft] RPN Calc App For Android

OK, you forced me to open my desk drawer all the way and find out what I had. After climbing over a bunch of mix 31 toroids, a set of Rapidograph pens, two mechanical drawing sets, ballpoint pens etc., I got to the last slide rule in the very back of the drawer. I ended up finding my old 6

Re: [Elecraft] RPN Calc App For Android

I collect slide rules. I've been an Oughtred Society member for years.  Just an example, I have the 20" K Log Log Duplex Decitrig in mahogany mentioned in Heinlein's "Have Spacesuit, Will Travel". It's my favorite. 73, Gwen, NG3P On Sat, Feb 5, 2022, 5:50 PM Byron Servies wrote: > On Mon,

Re: [Elecraft] RPN Calc App For Android

I still have and use my K Log log Duplex Vector ... after all this time, I still remember the motions although I don't remember the formulae.  There's something visual about it 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County Byron Servies wrote on 2/5/2022 2:49 PM: On Mon, Jan 31,

Re: [Elecraft] RPN Calc App For Android

On Mon, Jan 31, 2022 at 9:11 AM Clark Macaulay wrote: > Oh, I still have my K Log Log Duplex Decitrig slide rule with mahogany > rails. YupI'm old. For those of us who are younger but find slide rules fascinating, here is a great reference: http://www.oughtred.org/ Yes, there is a

Re: [Elecraft] RPN Calc App For Android

On 30/01/2022 04:53, Mike Morrow wrote: The finest pure RPN (not RPL) machine ever made is the HP-42S (1988-1995).  It still brings prices above $300 on eBay and is worth it. The owners manuals are on eBay in the UK for more than £100!!! Wow!

Re: [Elecraft] RPN Calc App For Android

I use my HP 200 LX for calculator. It also is a very handy logging device. On Sat, Jan 29, 2022 at 4:39 AM Jim Brown wrote: > On 1/28/2022 6:01 PM, Geoffrey Feldman wrote: > > I almost hesitate to weigh in since so many others have. The HP41 app > is > > actually an emulator which runs the

Re: [Elecraft] RPN Calc App For Android

In 1975 I bought a HP25 for around $125. Though it wasn't labeled 'C' it was a HP25C. After that I could never really use an algebraic calculator. A few years back I really wanted a new HP RPN calculator. I "built" a WP 34S. You take a HP-20b or HP-30b reflash the firmware and put an

Re: [Elecraft] RPN Calc App For Android

Oh my, Bill. You're dating yourself...as am I. I worked for HP in the early 70's when they were the calculator king. Part of the HP folklore is how HP got into the calculator business which is fascinating. I remember seeing a T-shirt with three symbols on it: Enter > =. It took me a while to

Re: [Elecraft] RPN Calc App For Android

Free42 -- Dave, N8SBE Quoting Jim Brown : The HP41 emulator I've used for years on older phones isn't compatible with my new one. I still own a few simple RPN calcs, but the phone is always in my pocket. Recommendations? Thanks and 73, Jim K9YC

Re: [Elecraft] RPN Calc App For Android

I have an HP-11 bought when they were new, which is an old and reliable companion. I have “Retro 15C” on my iPhone which also works well. While I generally don’t program them — I like the self-documentation of a real programming language for anything complex enough to need a program — they work

Re: [Elecraft] RPN Calc App For Android

I have a working HP25 out in the garage/workshop.  The battery pack expired long ago and I pried it apart and put some Ni Cad cells in it. I have a 15C in the shack. I had another one, HP41C I think, that failed.  I can't find it so I think I finally threw it away.  Didn't like it anyway :-)

Re: [Elecraft] RPN Calc App For Android

I still have an HP15C on my desk that I picked up when I was working at the Ohio State University and taking EE/Computer Science from '79- '84. It replaced an earlier model (probably an HP-25) in which both the battery and LED module failed. The 15C is still ticking right along with new

Re: [Elecraft] RPN Calc App For Android

Hi all, Guy here. Love rpn. Love calculus, love sliderules too! I still have my HP 11C. Had a 15C but it got left at Intel. :-( Here is the 41C plus for the Apple devices. http://alsoftiphone.com/i41CXplus/ One of the main reasons I have an older iPhone 8 and iPad. Never buy new iPhones.

[Elecraft] RPN Calc App For Android

Interesting discussion of the RPN calculators! I've been a user of RPN calculators for fifty years now. I started my EE career in 1966 still using slide rules. My first calculator was the HP-25C, then went to the HP-67 and several others after that. My favorite is the HP-28S, which is

Re: [Elecraft] RPN Calc App For Android

: Reflector Elecraft Subject: Re: [Elecraft] RPN Calc App For Android   First time posting to the reflector. Please forgive any errors.   I found this little inquiry and the resulting responses fascinating.   I'm old enough that: (1) I had to use a slide rule in college chemistry classes, because new

Re: [Elecraft] RPN Calc App For Android

First time posting to the reflector. Please forgive any errors. I found this little inquiry and the resulting responses fascinating. I'm old enough that: (1) I had to use a slide rule in college chemistry classes, because new-fangled electronic calculators were not allowed (2) I learned RPN as

Re: [Elecraft] RPN Calc App For Android

I use Droid48. It's a pretty faithful recreation of the HP48 and has a pocket calculator style interface too (but it's still RPN) https://play.google.com/store/apps/details?id=org.ab.x48 Eric KI7LTT On Fri, Jan 28, 2022, 12:51 PM Jim Brown wrote: > The HP41 emulator I've used for years on

Re: [Elecraft] RPN Calc App For Android

On 1/28/2022 6:01 PM, Geoffrey Feldman wrote: I almost hesitate to weigh in since so many others have. The HP41 app is actually an emulator which runs the actual firmware from the original calculator. Thanks for all the great input, guys! 73, Jim K9YC

Re: [Elecraft] RPN Calc App For Android

__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:

Re: [Elecraft] RPN Calc App For Android

I've got a perfectly serviceable slide rule app for my Android phone. 73, Gwen, NG3P On Fri, Jan 28, 2022, 9:02 PM Geoffrey Feldman wrote: > I almost hesitate to weigh in since so many others have. The HP41 app is > actually an emulator which runs the actual firmware from the original >

[Elecraft] RPN Calc App For Android

I almost hesitate to weigh in since so many others have. The HP41 app is actually an emulator which runs the actual firmware from the original calculator. If you have HP41 programs you like and don't feel like porting them, this is the best going. However, I like "Free42" which is a complete

Re: [Elecraft] RPN Calc App For Android

On 1/28/2022 2:51 PM, Kevin Cozens wrote: You didn't say which version of Android you are now using vs. what you had before. I'm on Android 11. On a couple of recommendations, I just loaded Free42 Thanks for all the suggestions. 73, Jim K9YC

Re: [Elecraft] RPN Calc App For Android

On 2022-01-28 17:24, kevin wrote: What is 6 * 7? 49 (For those who will understand the reference.) I have 41C(V) emulation under Linux, Windows, on my PDA, and my Android tablet. I use a41CV on Android but my tablet is old. A search of the play store turned up go41c. You could have a look

Re: [Elecraft] RPN Calc App For Android

It is invalid syntax in RPN. Perhaps you meant 6 7 *. :-) wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 28, 2022, at 2:24 PM, kevin wrote: > > What is 6 * 7? > > KD5ONS > > > On 1/28/22 14:10, Dale Chayes wrote: >>> On Jan 28, 2022, at 16:16 ,

Re: [Elecraft] RPN Calc App For Android

What is 6 * 7?     KD5ONS On 1/28/22 14:10, Dale Chayes wrote: On Jan 28, 2022, at 16:16 , Walter Underwood wrote: What kind of phone? On iPhones and Macs, I’ve used PCalc for years. It’s great. https://pcalc.com I second the Pcalc recommendation (for iPhones and Macs) - I’ve used it for

Re: [Elecraft] RPN Calc App For Android

> On Jan 28, 2022, at 16:16 , Walter Underwood wrote: > > What kind of phone? On iPhones and Macs, I’ve used PCalc for years. It’s > great. > > https://pcalc.com I second the Pcalc recommendation (for iPhones and Macs) - I’ve used it for many generations of laptops and phones - since at

Re: [Elecraft] RPN Calc App For Android

I use RealCalc Scientific Calculator by Quartic Software. It has RPN mode and is excellent 73, Danny - WX4P > Message: 22 > Date: Fri, 28 Jan 2022 12:50:42 -0800 > From: Jim Brown > To: Reflector Elecraft > Subject: [Elecraft] RPN Calc App For Android > Message-ID: >

Re: [Elecraft] RPN Calc App For Android

Strange... Maybe because I used HTML? Here it is again, hopefully makes it this time. Maybe https://thomasokken.com/free42/ - unbeatable, in my very biased opinion. An FPGA version is even available. Not the nearly the same tactile feedback as my real (aging) hp42 but very nice all the

Re: [Elecraft] RPN Calc App For Android

Blank email. Thanks, Jim K9YC On 1/28/2022 1:24 PM, Mike Markowski wrote: __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

Re: [Elecraft] RPN Calc App For Android

Never mind, the title said “Android”. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 28, 2022, at 1:16 PM, Walter Underwood wrote: > > What kind of phone? On iPhones and Macs, I’ve used PCalc for years. It’s > great. > > https://pcalc.com > > wunder

Re: [Elecraft] RPN Calc App For Android

__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:

Re: [Elecraft] RPN Calc App For Android

A friend K7BVO comments follow. I have no idea if this applies to your problem Here is the one I pretty much use exclusively: https://play.google.com/store/apps/details?id=uk.co.nickfines.RealCalc=en_US=US I

Re: [Elecraft] RPN Calc App For Android

What kind of phone? On iPhones and Macs, I’ve used PCalc for years. It’s great. https://pcalc.com wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 28, 2022, at 12:50 PM, Jim Brown wrote: > > The HP41 emulator I've used for years on older phones isn't

Re: [Elecraft] RPN Calc App For Android

Jim, I've been using RealCalc on Android for years. It supports RPN mode as well as Traditional Algebraic. 73, Dave, W8FGU On 1/28/2022 3:50:42 PM, "Jim Brown" wrote: The HP41 emulator I've used for years on older phones isn't compatible with my new one. I still own a few simple RPN

[Elecraft] RPN Calc App For Android

The HP41 emulator I've used for years on older phones isn't compatible with my new one. I still own a few simple RPN calcs, but the phone is always in my pocket. Recommendations? Thanks and 73, Jim K9YC __ Elecraft mailing list Home: