#rpn — Public Fediverse posts

I feel bad for Jan Łukasiewicz, whose mathematical notation was so important that we still use it today, but because English speakers couldn't pronounce his name, instead of it being named after him it's just "Polish notation" and its successor, "Reverse Polish notation". They could have at least called it Jan notation you'd think? #RPN #calculators #maths #mathematics

I feel bad for Jan Łukasiewicz, whose mathematical notation was so important that we still use it today, but because English speakers couldn't pronounce his name, instead of it being named after him it's just "Polish notation" and its successor, "Reverse Polish notation". They could have at least called it Jan notation you'd think? #RPN #calculators #maths #mathematics

I feel bad for Jan Łukasiewicz, whose mathematical notation was so important that we still use it today, but because English speakers couldn't pronounce his name, instead of it being named after him it's just "Polish notation" and its successor, "Reverse Polish notation". They could have at least called it Jan notation you'd think? #RPN #calculators #maths #mathematics

I feel bad for Jan Łukasiewicz, whose mathematical notation was so important that we still use it today, but because English speakers couldn't pronounce his name, instead of it being named after him it's just "Polish notation" and its successor, "Reverse Polish notation". They could have at least called it Jan notation you'd think? #RPN #calculators #maths #mathematics

I feel bad for Jan Łukasiewicz, whose mathematical notation was so important that we still use it today, but because English speakers couldn't pronounce his name, instead of it being named after him it's just "Polish notation" and its successor, "Reverse Polish notation". They could have at least called it Jan notation you'd think? #RPN #calculators #maths #mathematics

Finally made the thrift-store HP 39gs into a usable #rpn #calculator with #newRPL firmware and an overlay from calcoverlays.com; well worth the $11 to not have to try to cut something out to clear dozens of keys myself.

Finally made the thrift-store HP 39gs into a usable #rpn #calculator with #newRPL firmware and an overlay from calcoverlays.com; well worth the $11 to not have to try to cut something out to clear dozens of keys myself.

I was there Gandalf, in the 90s.

#hpcalculators #hp12c #rpn #rpncalculator #os2 #os2warp

I was there Gandalf, in the 90s.

#hpcalculators #hp12c #rpn #rpncalculator #os2 #os2warp

I was there Gandalf, in the 90s.

#hpcalculators #hp12c #rpn #rpncalculator #os2 #os2warp

I was there Gandalf, in the 90s.

#hpcalculators #hp12c #rpn #rpncalculator #os2 #os2warp

I was there Gandalf, in the 90s.

#hpcalculators #hp12c #rpn #rpncalculator #os2 #os2warp

I have fond memories of using this calculator growing up. It’s been stolen on several occasions from my father during moves and he’s replaced it just as many times.

When he passed, it was one of his things that I wanted, but it also mysteriously disappeared.

I purchased my own today and am happy. It’s not the calculator my father used, but it’s still a first gen 12C and it brings me joy.

#hpcalculators #hp12c #rpn #rpncalculator

I have fond memories of using this calculator growing up. It’s been stolen on several occasions from my father during moves and he’s replaced it just as many times.

When he passed, it was one of his things that I wanted, but it also mysteriously disappeared.

I purchased my own today and am happy. It’s not the calculator my father used, but it’s still a first gen 12C and it brings me joy.

#hpcalculators #hp12c #rpn #rpncalculator

I have fond memories of using this calculator growing up. It’s been stolen on several occasions from my father during moves and he’s replaced it just as many times.

When he passed, it was one of his things that I wanted, but it also mysteriously disappeared.

I purchased my own today and am happy. It’s not the calculator my father used, but it’s still a first gen 12C and it brings me joy.

#hpcalculators #hp12c #rpn #rpncalculator

I have fond memories of using this calculator growing up. It’s been stolen on several occasions from my father during moves and he’s replaced it just as many times.

When he passed, it was one of his things that I wanted, but it also mysteriously disappeared.

I purchased my own today and am happy. It’s not the calculator my father used, but it’s still a first gen 12C and it brings me joy.

#hpcalculators #hp12c #rpn #rpncalculator

I have fond memories of using this calculator growing up. It’s been stolen on several occasions from my father during moves and he’s replaced it just as many times.

When he passed, it was one of his things that I wanted, but it also mysteriously disappeared.

I purchased my own today and am happy. It’s not the calculator my father used, but it’s still a first gen 12C and it brings me joy.

#hpcalculators #hp12c #rpn #rpncalculator

https://arxiv.org/pdf/2603.21852 This is interesting! All functions on a scientific calculator can be reduced to just '1' and this dyadic function 'EML'. @NanoRaptor If you ever felt like creating an HP voyager calculator with a very limited number of buttons... I think we could get away with just '1' 'EML', roll down and x<>y. Maybe on. And the most important one '%'. :) #calculators #rpn

https://arxiv.org/pdf/2603.21852 This is interesting! All functions on a scientific calculator can be reduced to just '1' and this dyadic function 'EML'. @NanoRaptor If you ever felt like creating an HP voyager calculator with a very limited number of buttons... I think we could get away with just '1' 'EML', roll down and x<>y. Maybe on. And the most important one '%'. :) #calculators #rpn

https://arxiv.org/pdf/2603.21852 This is interesting! All functions on a scientific calculator can be reduced to just '1' and this dyadic function 'EML'. @NanoRaptor If you ever felt like creating an HP voyager calculator with a very limited number of buttons... I think we could get away with just '1' 'EML', roll down and x<>y. Maybe on. And the most important one '%'. :) #calculators #rpn

https://arxiv.org/pdf/2603.21852 This is interesting! All functions on a scientific calculator can be reduced to just '1' and this dyadic function 'EML'. @NanoRaptor If you ever felt like creating an HP voyager calculator with a very limited number of buttons... I think we could get away with just '1' 'EML', roll down and x<>y. Maybe on. And the most important one '%'. :) #calculators #rpn

https://arxiv.org/pdf/2603.21852 This is interesting! All functions on a scientific calculator can be reduced to just '1' and this dyadic function 'EML'. @NanoRaptor If you ever felt like creating an HP voyager calculator with a very limited number of buttons... I think we could get away with just '1' 'EML', roll down and x<>y. Maybe on. And the most important one '%'. :) #calculators #rpn

Back in the late 90s, when TI already ruled calculators in High Schools, I selected HP48 as my platform. It is a high-end engineering calculator with CAS capabilities, native units, stack based interface and programmable in RPL.

Recently I purchased a near mint HP48G and again have a physical calculator on my desk.

Between rich library, various symbolic solvers and even ... more on:

https://saahbs.net/post/20260315-hp48-again/

#hp #hp48 #calculator #rpl #rpn #diy #retroComputing #rc

Back in the late 90s, when TI already ruled calculators in High Schools, I selected HP48 as my platform. It is a high-end engineering calculator with CAS capabilities, native units, stack based interface and programmable in RPL.

Recently I purchased a near mint HP48G and again have a physical calculator on my desk.

Between rich library, various symbolic solvers and even ... more on:

https://saahbs.net/post/20260315-hp48-again/

#hp #hp48 #calculator #rpl #rpn #diy #retroComputing #rc

J’adore ces machines où l’UX est… mécanique.
La HP-46 (1973) combine calcul scientifique, RPN et imprimante intégrée : tu obtiens une trace papier immédiate et le clac-clac vaut un ASMR vintage. 😄

A lire : https://www.silicium.org/index.php/blog-catalogue/ordis/hewlett-packard/hp46

#HP-46 #HewlettPackard #RetroComputing #VintageTech #RPN #OldHardware #GeekHistory

J’adore ces machines où l’UX est… mécanique.
La HP-46 (1973) combine calcul scientifique, RPN et imprimante intégrée : tu obtiens une trace papier immédiate et le clac-clac vaut un ASMR vintage. 😄

A lire : https://www.silicium.org/index.php/blog-catalogue/ordis/hewlett-packard/hp46

#HP-46 #HewlettPackard #RetroComputing #VintageTech #RPN #OldHardware #GeekHistory

J’adore ces machines où l’UX est… mécanique.
La HP-46 (1973) combine calcul scientifique, RPN et imprimante intégrée : tu obtiens une trace papier immédiate et le clac-clac vaut un ASMR vintage. 😄

A lire : https://www.silicium.org/index.php/blog-catalogue/ordis/hewlett-packard/hp46

#HP-46 #HewlettPackard #RetroComputing #VintageTech #RPN #OldHardware #GeekHistory

J’adore ces machines où l’UX est… mécanique.
La HP-46 (1973) combine calcul scientifique, RPN et imprimante intégrée : tu obtiens une trace papier immédiate et le clac-clac vaut un ASMR vintage. 😄

A lire : https://www.silicium.org/index.php/blog-catalogue/ordis/hewlett-packard/hp46

#HP-46 #HewlettPackard #RetroComputing #VintageTech #RPN #OldHardware #GeekHistory

J’adore ces machines où l’UX est… mécanique.
La HP-46 (1973) combine calcul scientifique, RPN et imprimante intégrée : tu obtiens une trace papier immédiate et le clac-clac vaut un ASMR vintage. 😄

A lire : https://www.silicium.org/index.php/blog-catalogue/ordis/hewlett-packard/hp46

#HP-46 #HewlettPackard #RetroComputing #VintageTech #RPN #OldHardware #GeekHistory

RPN - rätt sätt att räkna på.

Joachim Klahr använder omvänd polsk notation i sitt programmeringsspråk Quadrate, och insåg att han räknat på ett sämre sätt hela livet.

Ett utdrag ur Kodsnack 690 - lyssna där poddar finns eller på kodsnack.se
#podcast #rpn #quadrate #hpCalculators #ti83

RPN - rätt sätt att räkna på.

Joachim Klahr använder omvänd polsk notation i sitt programmeringsspråk Quadrate, och insåg att han räknat på ett sämre sätt hela livet.

Ett utdrag ur Kodsnack 690 - lyssna där poddar finns eller på kodsnack.se
#podcast #rpn #quadrate #hpCalculators #ti83

RPN - rätt sätt att räkna på.

Joachim Klahr använder omvänd polsk notation i sitt programmeringsspråk Quadrate, och insåg att han räknat på ett sämre sätt hela livet.

Ett utdrag ur Kodsnack 690 - lyssna där poddar finns eller på kodsnack.se
#podcast #rpn #quadrate #hpCalculators #ti83

RPN - rätt sätt att räkna på.

Joachim Klahr använder omvänd polsk notation i sitt programmeringsspråk Quadrate, och insåg att han räknat på ett sämre sätt hela livet.

Ett utdrag ur Kodsnack 690 - lyssna där poddar finns eller på kodsnack.se
#podcast #rpn #quadrate #hpCalculators #ti83

RPN - rätt sätt att räkna på.

Joachim Klahr använder omvänd polsk notation i sitt programmeringsspråk Quadrate, och insåg att han räknat på ett sämre sätt hela livet.

Ett utdrag ur Kodsnack 690 - lyssna där poddar finns eller på kodsnack.se
#podcast #rpn #quadrate #hpCalculators #ti83

RE: https://mastodon.ml/@volandevsrat/116022729946941274

#софт #TRH #идиоты #математика #калькулятор #RPN #Android

...Вот именно поэтому для подсчтета всякой бытовой херни у меня есть какулятор в обратной польской нотации 😉 Всё лежит в стеке, нет «алгоритмического» порядка операций 😉 нету скобок, понятно даже ребенку с первого раза. На #FDroid гуглить RPN Calculator, вот этот самое огниво при том, что прост как три копейки.

RE: https://mastodon.ml/@volandevsrat/116022729946941274

#софт #TRH #идиоты #математика #калькулятор #RPN #Android

...Вот именно поэтому для подсчтета всякой бытовой херни у меня есть какулятор в обратной польской нотации 😉 Всё лежит в стеке, нет «алгоритмического» порядка операций 😉 нету скобок, понятно даже ребенку с первого раза. На #FDroid гуглить RPN Calculator, вот этот самое огниво при том, что прост как три копейки.

RE: https://mastodon.ml/@volandevsrat/116022729946941274

#софт #TRH #идиоты #математика #калькулятор #RPN #Android

...Вот именно поэтому для подсчтета всякой бытовой херни у меня есть какулятор в обратной польской нотации 😉 Всё лежит в стеке, нет «алгоритмического» порядка операций 😉 нету скобок, понятно даже ребенку с первого раза. На #FDroid гуглить RPN Calculator, вот этот самое огниво при том, что прост как три копейки.

RE: https://mastodon.ml/@volandevsrat/116022729946941274

#софт #TRH #идиоты #математика #калькулятор #RPN #Android

...Вот именно поэтому для подсчтета всякой бытовой херни у меня есть какулятор в обратной польской нотации 😉 Всё лежит в стеке, нет «алгоритмического» порядка операций 😉 нету скобок, понятно даже ребенку с первого раза. На #FDroid гуглить RPN Calculator, вот этот самое огниво при том, что прост как три копейки.

RE: https://mastodon.ml/@volandevsrat/116022729946941274

#софт #TRH #идиоты #математика #калькулятор #RPN #Android

...Вот именно поэтому для подсчтета всякой бытовой херни у меня есть какулятор в обратной польской нотации 😉 Всё лежит в стеке, нет «алгоритмического» порядка операций 😉 нету скобок, понятно даже ребенку с первого раза. На #FDroid гуглить RPN Calculator, вот этот самое огниво при том, что прост как три копейки.

"All Hewlett-Packard pocket calculators feature RPN logic- the most sensible logic system a pocket calculator can have!"

This beautiful short introduction to #RPN (Reverse Polish Notation) is from Hewlett-Packard's Pocket Calculator Buyer's Guide printed in 1975.

The MINUTEMAN * 6X was an early calculator by #Commodore from 1974, the company that was later famous for legendary computers like the Commodore 64 and the #Amiga family. The #MINUTEMAN supported #RPN (reverse Polish notation), had a 2-level stack and arithmetics for integers and currency values.

逆ポーランド記法電卓のススメ
とオープンソース開発者の募集

RPN電卓はとても良いものです。
Win16時時代にあったフリーソフトを、弊社がWin32/64用に模倣したWHP32を無料で公開していますので、ぜひお試し下さい
https://www.mirai-ii.co.jp/products/soft/whp/

弊社では帳簿を書くときの計算に必須アイテムとなっています。

現時点でほぼ完成しています。
国際化対応も済んでいて、(表示が変わるのはメニューだけですが)日本語、英語、台灣正体字、エスペラントで言語切替が可能です。

ですが、更なる多機能化の可能性に期待して、「オープンソース化」を計画しています。
ソースはC++ with STLで書かれたシンプルなものですが、興味ある方が複数おられれば、GitHubにリポジトリを作りたいと考えています。

興味ある方はメンションなどでご連絡くださいませ

#Fedibird #RPN #オープンソース #OSS

逆ポーランド記法電卓のススメ
とオープンソース開発者の募集

RPN電卓はとても良いものです。
Win16時時代にあったフリーソフトを、弊社がWin32/64用に模倣したWHP32を無料で公開していますので、ぜひお試し下さい
https://www.mirai-ii.co.jp/products/soft/whp/

弊社では帳簿を書くときの計算に必須アイテムとなっています。

現時点でほぼ完成しています。
国際化対応も済んでいて、(表示が変わるのはメニューだけですが)日本語、英語、台灣正体字、エスペラントで言語切替が可能です。

ですが、更なる多機能化の可能性に期待して、「オープンソース化」を計画しています。
ソースはC++ with STLで書かれたシンプルなものですが、興味ある方が複数おられれば、GitHubにリポジトリを作りたいと考えています。

興味ある方はメンションなどでご連絡くださいませ

#Fedibird #RPN #オープンソース #OSS

逆ポーランド記法電卓のススメ
とオープンソース開発者の募集

RPN電卓はとても良いものです。
Win16時時代にあったフリーソフトを、弊社がWin32/64用に模倣したWHP32を無料で公開していますので、ぜひお試し下さい
https://www.mirai-ii.co.jp/products/soft/whp/

弊社では帳簿を書くときの計算に必須アイテムとなっています。

現時点でほぼ完成しています。
国際化対応も済んでいて、(表示が変わるのはメニューだけですが)日本語、英語、台灣正体字、エスペラントで言語切替が可能です。

ですが、更なる多機能化の可能性に期待して、「オープンソース化」を計画しています。
ソースはC++ with STLで書かれたシンプルなものですが、興味ある方が複数おられれば、GitHubにリポジトリを作りたいと考えています。

興味ある方はメンションなどでご連絡くださいませ

#Fedibird #RPN #オープンソース #OSS

I'm out of touch in that only last year I learned that #HP calculators are no longer produced. I still use my #33S, but but if I want to replace it, I need to buy one on E-Bay. Apparently handheld calculators with buttons and #RPN are thing of the past. Time flies.

I'm out of touch in that only last year I learned that #HP calculators are no longer produced. I still use my #33S, but but if I want to replace it, I need to buy one on E-Bay. Apparently handheld calculators with buttons and #RPN are thing of the past. Time flies.

I'm out of touch in that only last year I learned that #HP calculators are no longer produced. I still use my #33S, but but if I want to replace it, I need to buy one on E-Bay. Apparently handheld calculators with buttons and #RPN are thing of the past. Time flies.

I'm out of touch in that only last year I learned that #HP calculators are no longer produced. I still use my #33S, but but if I want to replace it, I need to buy one on E-Bay. Apparently handheld calculators with buttons and #RPN are thing of the past. Time flies.

I'm out of touch in that only last year I learned that #HP calculators are no longer produced. I still use my #33S, but but if I want to replace it, I need to buy one on E-Bay. Apparently handheld calculators with buttons and #RPN are thing of the past. Time flies.

These are my recommendations for the iPhone apps that emulate various #HP #RPN #scientific calculators, in the ascending order of capabilities:

• HP-35—https://apps.apple.com/us/app/hp-35/id6738010641
• HP-45—https://apps.apple.com/us/app/rpn-45-sd/id509923051
• HP-25CE—https://apps.apple.com/us/app/rpn-25-ce/id1529311398
• HP-67—https://apps.apple.com/us/app/rpn-67-sd/id1109722386
• HP-15C (free)—https://apps.apple.com/us/app/retro-15c/id583559000
• HP-41CX—https://apps.apple.com/us/app/i41cx/id292619450
• HP-42S (free)—https://apps.apple.com/us/app/free42/id337692629
• HP-48 (free)—https://apps.apple.com/us/app/i48/id329454950
• HP Prime (free)—https://apps.apple.com/us/app/hp-prime-lite/id1208226883

Of those, my favourite is the HP-15C emulator. The vibe I get from this app on my iPhone is almost like when I use my original, 1980s HP-15C. And that is a high praise for this app, considering the massive difference between HP's venerable tactile keys and the iPhone's vapid touch screen. Oh, and, it is free!