Cool book.

https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144

It ends by saying that, basically, the calculator is now dead. I have
four HP32's, and an excellent HP calc clone on my phone.

My first calculator was an HP35, so my brain is hardwired in Reverse
Polish.

On 8/31/2023 8:19 PM, John Larkin wrote:
>
> Cool book.
>
> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>
> It ends by saying that, basically, the calculator is now dead. I have
> four HP32's, and an excellent HP calc clone on my phone.
>
> My first calculator was an HP35, so my brain is hardwired in Reverse
> Polish.
>

Can any of that series store user programs? I have a 20S I got for free
I like, but no non-volatile storage is kind of a bummer.

On Thursday, August 31, 2023 at 6:27:59 PM UTC-7, bitrex wrote:
> On 8/31/2023 8:19 PM, John Larkin wrote:
> >
> > Cool book.
> >
> > https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
> >
> > It ends by saying that, basically, the calculator is now dead. I have
> > four HP32's, and an excellent HP calc clone on my phone.
> >
> > My first calculator was an HP35, so my brain is hardwired in Reverse
> > Polish.
> >
> Can any of that series store user programs? I have a 20S I got for free
> I like, but no non-volatile storage is kind of a bummer.

HP-34C was my good programmable calculator. LED display.

On 2023-08-31 21:27, bitrex wrote:
> On 8/31/2023 8:19 PM, John Larkin wrote:
>>
>> Cool book.
>>
>> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>>
>> It ends by saying that, basically, the calculator is now dead. I have
>> four HP32's, and an excellent HP calc clone on my phone.
>>
>> My first calculator was an HP35, so my brain is hardwired in Reverse
>> Polish.
>>
>
> Can any of that series store user programs? I have a 20S I got for free
> I like, but no non-volatile storage is kind of a bummer.

I've always had an HP41C since I bought my first one in 1979. (My
current one is at my elbow here in the lab, and I used it yesterday.) I
still have a binder full of programs I wrote for it, including the mag
cards. I haven't written any since about 1984, when I got an actual
computer. (It was an HP9816.)

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

On Sun, 3 Sep 2023 12:20:37 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

>On 2023-08-31 21:27, bitrex wrote:
>> On 8/31/2023 8:19 PM, John Larkin wrote:
>>>
>>> Cool book.
>>>
>>> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>>>
>>> It ends by saying that, basically, the calculator is now dead. I have
>>> four HP32's, and an excellent HP calc clone on my phone.
>>>
>>> My first calculator was an HP35, so my brain is hardwired in Reverse
>>> Polish.
>>>
>>
>> Can any of that series store user programs? I have a 20S I got for free
>> I like, but no non-volatile storage is kind of a bummer.
>
>I've always had an HP41C since I bought my first one in 1979. (My
>current one is at my elbow here in the lab, and I used it yesterday.) I
>still have a binder full of programs I wrote for it, including the mag
>cards. I haven't written any since about 1984, when I got an actual
>computer. (It was an HP9816.)
>
>Cheers
>
>Phil Hobbs

I always prefer RPN and use a HP48 or my HP15C that I carry with me.
Had to buy another HP15C because my first one was stolen along with my
old car 20 years ago.

Started with an HP21 or HP25. Awwwww the good old days !

boB

On Thursday, August 31, 2023 at 7:19:58 PM UTC-5, John Larkin wrote:
> Cool book.
>
> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>
> It ends by saying that, basically, the calculator is now dead. I have
> four HP32's, and an excellent HP calc clone on my phone.
>
> My first calculator was an HP35, so my brain is hardwired in Reverse
> Polish.

Maybe dead to everyone else, but I use a calculator every day.

On Thursday, August 31, 2023 at 7:19:58 PM UTC-5, John Larkin wrote:
> Cool book.
>
> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>
> It ends by saying that, basically, the calculator is now dead. I have
> four HP32's, and an excellent HP calc clone on my phone.
>
> My first calculator was an HP35, so my brain is hardwired in Reverse
> Polish.

You talked me into it. My copy will be here tomorrow.

On 8/31/2023 5:19 PM, John Larkin wrote:
>
> Cool book.
>
> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>
> It ends by saying that, basically, the calculator is now dead. I have
> four HP32's, and an excellent HP calc clone on my phone.
>
> My first calculator was an HP35, so my brain is hardwired in Reverse
> Polish.
>

Not sure the calculator is 'dead'. I have an HP48GX 'for real' and a
clone on my phone. Use them both, but in different settings. For lab
work having the physical calculator is very handy because work is not
interrupted by the use of some other app. Plus, I dislike touch-screen
keyboards.

On 9/3/2023 12:20 PM, Phil Hobbs wrote:
> On 2023-08-31 21:27, bitrex wrote:
>> On 8/31/2023 8:19 PM, John Larkin wrote:
>>>
>>> Cool book.
>>>
>>> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
>>>
>>> It ends by saying that, basically, the calculator is now dead. I have
>>> four HP32's, and an excellent HP calc clone on my phone.
>>>
>>> My first calculator was an HP35, so my brain is hardwired in Reverse
>>> Polish.
>>>
>>
>> Can any of that series store user programs? I have a 20S I got for
>> free I like, but no non-volatile storage is kind of a bummer.
>
> I've always had an HP41C since I bought my first one in 1979.  (My
> current one is at my elbow here in the lab, and I used it yesterday.) I
> still have a binder full of programs I wrote for it, including the mag
> cards.  I haven't written any since about 1984, when I got an actual
> computer. (It was an HP9816.)
>
> Cheers
>
> Phil Hobbs
>

Even just impedance to admittance via rectangular -> polar -> 1/polar ->
rectangular would nice to have without resorting to a web-based calculator.

The SwissMicros version of the '42 seems competitive with the vintage units:

<https://www.swissmicros.com/product/dm42>

On Monday, September 4, 2023 at 6:24:28 PM UTC-5, bitrex wrote:
> On 9/3/2023 12:20 PM, Phil Hobbs wrote:
> > On 2023-08-31 21:27, bitrex wrote:
> >> On 8/31/2023 8:19 PM, John Larkin wrote:
> >>>
> >>> Cool book.
> >>>
> >>> https://www.amazon.com/Empire-Sum-Reign-Pocket-Calculator/dp/0393882144
> >>>
> >>> It ends by saying that, basically, the calculator is now dead. I have
> >>> four HP32's, and an excellent HP calc clone on my phone.
> >>>
> >>> My first calculator was an HP35, so my brain is hardwired in Reverse
> >>> Polish.
> >>>
> >>
> >> Can any of that series store user programs? I have a 20S I got for
> >> free I like, but no non-volatile storage is kind of a bummer.
> >
> > I've always had an HP41C since I bought my first one in 1979. (My
> > current one is at my elbow here in the lab, and I used it yesterday.) I
> > still have a binder full of programs I wrote for it, including the mag
> > cards. I haven't written any since about 1984, when I got an actual
> > computer. (It was an HP9816.)
> >
> > Cheers
> >
> > Phil Hobbs
> >
> Even just impedance to admittance via rectangular -> polar -> 1/polar ->
> rectangular would nice to have without resorting to a web-based calculator.
>
> The SwissMicros version of the '42 seems competitive with the vintage units:
>
> <https://www.swissmicros.com/product/dm42>

I have i41CX+ and Maple Calculator on my phone. Take a look and see if one of them fits your needs.
On my desktop I use XCALC. It is old, but I'm sure it will do what you want.. It handles complex numbers easily. I can send it to you, if you wish.