Postfix algebraic scientific calculators still in production

Postfix algebraic scientific calculators still in production - Printable Version

+- HP Forums (https://www.hpmuseum.org/forum)
+-- Forum: Not HP Calculators (/forum-7.html)
+--- Forum: Not remotely HP Calculators (/forum-9.html)
+--- Thread: Postfix algebraic scientific calculators still in production (/thread-11385.html)

Pages: 1 2

RE: Postfix algebraic scientific calculators still in production - Gene - 09-19-2018 03:02 PM

Years ago at the University, in addition to taking a typing proficiency test (35 words a minute for five minutes with five or fewer mistakes), you also had to take a 10-key proficiency test on an adding machine.

Add up lots and lots of numbers. Had to be very quick as well.

RE: Postfix algebraic scientific calculators still in production - burkhard - 09-21-2018 03:42 PM

Both videos were amazing. I'm not sure I'd practice 9AM → 9PM as one of the girls interviewed discussed, but I'm glad somebody does!

I am wondering the actual age of the videos... somehow they seemed dated... 1990s, maybe? Are the squads of "calculator women" still found in Japanese businesses? How about the school competitions?

You can buy some plastic, yet very nice student-grade sorobans for only a couple of $ off eBay. I got one a while ago and quickly trained myself how to do the calculations. When I was practicing, I could go reasonably quickly (4 or 5 digit numbers, nothing really big), but nowhere near what even a Japanese 8 year old can do.

I do think that, as with a slide rule, these manual tools demand that the brain work more actively throughout the calculation and this instills better, more fluid, numeracy, especially in young children. I really cringe to see young gradeschool kids moving to calculators as early as they typically do now (at least in the USA, where my experience lies).

I'd rather some years be spent first on non-electronic methods: pencil/paper, mental, soroban, slide rule, ruler & compass geometric constructs. Calculators are amazing, but understanding what is going on and why should come first.

RE: Postfix algebraic scientific calculators still in production - Eddie W. Shore - 09-23-2018 05:05 PM

My blog entry on fast typing on calculators:

http://edspi31415.blogspot.com/2018/09/casio-desktop-calculators-calculating.html

Thank you for the inspiration.

RE: Postfix algebraic scientific calculators still in production - Mark Hardman - 09-23-2018 07:24 PM

(09-23-2018 05:05 PM)Eddie W. Shore Wrote: My blog entry on fast typing on calculators:

http://edspi31415.blogspot.com/2018/09/casio-desktop-calculators-calculating.html

Thank you for the inspiration.

As usual, an excellent post and terrific read. I'm pretty sure this is a typo in your post:

"The video explained that Kamimura was going 9 keystrokes a minute."

I'm pretty sure that I could manage that speed with my toes.

Warmest,

RE: Postfix algebraic scientific calculators still in production - ijabbott - 09-26-2018 11:27 PM

I got one of these Texet Albert² calculators:

It appears to be a TI-34 clone, but with the keys shifted around (and some relabelled) and a generally cheaper feel with printing that feels like it will rub off after a while (but it was quite cheap!). Also, the shifted function key labels are quite hard to read due to the abominable colour scheme. (Speaking of colours, the rubbery case is available in red, blue or yellow, but when buying from eBay you get a random colour.)

RE: Postfix algebraic scientific calculators still in production - Albert Chan - 09-26-2018 11:42 PM

(09-26-2018 11:27 PM)ijabbott Wrote: I got one of these Texet Albert² calculators:

My advice is not buy this, even though it had my name on it Big Grin

I guess it were design to sell in the dollar store, not worth the battery it put on ...

RE: Postfix algebraic scientific calculators still in production - ijabbott - 09-27-2018 07:50 AM

(09-26-2018 11:42 PM)Albert Chan Wrote:
(09-26-2018 11:27 PM)ijabbott Wrote: I got one of these Texet Albert² calculators:

My advice is not buy this, even though it had my name on it
I guess it were design to sell in the dollar store, not worth the battery it put on ...

Texet is a UK company specializing in school and office equipment. Their calculators are made in China of course. They seem to be mostly sold in crates as class packs. They have some other scientific models that are obvious Casio clones.

RE: Postfix algebraic scientific calculators still in production - Eddie W. Shore - 09-27-2018 12:49 PM

I never seen this clone of the TI-34 before. Disappointing to read that the quality is not good. I also don't like the dark colored text against the black background.

I think Texet is going for an Albert Einstein theme with their calculator names.

RE: Postfix algebraic scientific calculators still in production - Eddie W. Shore - 09-27-2018 12:51 PM

(09-23-2018 07:24 PM)Mark Hardman Wrote:
(09-23-2018 05:05 PM)Eddie W. Shore Wrote: My blog entry on fast typing on calculators:

http://edspi31415.blogspot.com/2018/09/casio-desktop-calculators-calculating.html

Thank you for the inspiration.

As usual, an excellent post and terrific read. I'm pretty sure this is a typo in your post:

"The video explained that Kamimura was going 9 keystrokes a minute."

I'm pretty sure that I could manage that speed with my toes.

Warmest,

Thank you. Yes, the minute is a typo, it should be second. Much thanks for pointing out my error. Blog entry is now corrected.