[Elecraft] RPN Calc App For Android

[Frank Hale]

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.

https://www.sliderulemuseum.com/Pickett/Pickett_115_Basic_Math_DavidHecht.jpg



On Sun, Feb 6, 2022 at 6:54 PM Fred Jensen <k6dgwnv at gmail.com> wrote:

> 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 Byron Servies <byron at n6nul.org> wrote:
> >> 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&E 4181-3 Log Log Duplex Decitrig.
> >>
> >> Unfortunately my alma mater stopped having "slide rule calculation" as
> >> a stage in the alumni vs current student race that year so my
> >> incentive to learn went away.  Still here, though, waiting for an
> >> appropriately lazy weekend to learn how to add.
> >>
> >> 73, Byron N6NUL
> >>
>
>
>
> --
> This email has been checked for viruses by AVG.
> https://www.avg.com
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to hodie.illumina.19 at gmail.com
>


-- 
Frank Hale, KN6QEK
Reach me at any of the following:
"Zot! Zot!"  fvhale at alumni.uci.edu
"Go Bears!"  fvhale at berkeley.edu
"CQ CQ"  kn6qek at arrl.net
and GMRS WROI375.

"You see, wire telegraph is a kind of a very, very long cat.
You pull his tail in New York,
and his head is meowing in Los Angeles.
Do you understand this?
And radio operates exactly the same way:
you send signals here, they receive them there.
The only difference is that there is no cat."
[Attr. Albert Einstein]]