#soroban — Public Fediverse posts

Sábado de Calculadoras: “A História do Ábaco”

https://retropolis.com.br/2026/05/30/sabado-de-calculadoras-a-historia-do-abaco/

#MundoRetro #baco #Antiguidades #Anzan #CalculadoraMecnica #ClculoMental #casio #Facit #HistriaDaComputao #HomemVsMquina #KiyoshiMatsuzaki #Retrocomputao #Soroban #Suanpan #ThomasNathanWood

This very important set of digits on an #abacus seems to beg for a solution

#soroban #i8647

The #jupan ( #korean #abacus ) appears to be a hybrid of the #chinese and #japanese abacuses

#soroban #suanpan

https://www.youtube.com/watch?v=6x3TYCH2mAI

My new #pocketCalculator

(I have to use a pen as a stylus to push the beads most of the time because it's all tiny)

#soroban #abacus #calculator

My new #pocketCalculator

(I have to use a pen as a stylus to push the beads most of the time because it's all tiny)

#soroban #abacus #calculator

#FlashAnzan #MentalSoroban #MindAbacus

#abacus #soroban #anzan

https://www.youtube.com/watch?v=Px_hvzYS3_Y

https://www.youtube.com/watch?v=WvbPAhQLBy4

I want this giant #soroban #abacus on a carrying strap! Such delightful #chonk!

Deal with the "sound quality issues" because a 7yo doing math this fast is amazing

#soroban #math #abacus

https://www.youtube.com/watch?v=GQtqlB-jXO0

I am:

* Learning #soroban #abacus and trying to improve my mental #math in other ways as well.

* #SkimReading "C By Example" to refresh my oxidized neural pathways on the subject.

* Keeping "Drawing On The Right Side Of The Brain" in the stack to read and work through.

* Attempting semi-immersive language learning by watching movies in #French

* Etc etc etc

#japan #abacus #production #soroban

https://www.youtube.com/watch?v=oyRukvDWQiU

#Japan #abacus #soroban #Ono #banshuSoroban

https://www.youtube.com/watch?v=_KC6VzZAvlM

#Abacus #soroban #japan #math #memory #BBC

https://www.youtube.com/watch?v=s6OmqXCsYt8

Eldest continues #soroban (Japanese abacus) 🧮 classes, including mental arithmetic #FlashAnzan techniques & regular drill practice on the computer…

This is currently a crazy physical and mental exercise where they run away from the computer, read the numbers to tally at a distance, then run back and type in answer 🤣

Apparently this helps maintain a small mental model in their (imaginary) field of view, leaving room for larger numbers in future. With some physical exercise as a bonus?

Exploring blockchain RPCs from the terminal 🔥

🌌 **stellar-tui** — Discover & execute Stellar RPC methods.

💯 Structured forms, response pagination, regex search & endpoint management.

🦀 Written in Rust & built with @ratatui_rs

⭐ GitHub: https://github.com/padparadscho/stellar-tui

#rustlang #ratatui #tui #stellar #soroban #blockchain #cli #devtools

Can anyone recommend resources for learning to use an abacus? Physical media preferred, but websites are also ok. English language please.

I have a Chinese-style (suanpan) and two Japanese-style (soroban) abacuses. I'm especially interested in advanced techniques that you would need if you were replacing your calculator with an abacus.

Are there other abacus types useful for specific calculations?

I find the Lee Kai-chen Abacus fascinating: http://totton.idirect.com/abacus/Lee/

#abacuses #suanpan #soroban

Okay, my first #Emacs package is officially released. It was strongly inspired by @sorobanexam's work, providing practice tools for the #soroban. This is the first Emacs package I've ever released. It's probably not perfect, but I welcome feedback on how it can be improved.

I wonder if there is an overlap of more than say five people who are both soroban and emacs users. 🙃

Anyhow, it can be found at: codeberg.org/jlamothe/soroban

It seems children’s school pencil cases now come with integrated little calculators in Japan - guess they don’t often have no calculator exams or tests? At least with #FlashAnzan techniques the #soroban is in your own head 🧮🧠

Learning the soroban rapid mental calculation as an adult

https://github.com/whacked/cow/blob/main/learning%20the%20soroban%20as%20an%20adult.md

#HackerNews #Learning #Soroban #Mental #Calculation #Adults #SorobanSkills #RapidCalculation

Estuve probando PyQt5 y desarrollé una aplicación sencilla para generar operaciones matemáticas aleatorias para practicar con mi soroban.

Por ahora permite elegir el tipo de operación y la cantidad de dígitos, y mostrar el resultado al presionar Enter

#Python #PyQt5 #Programación #Educación #Soroban #Abaco #SoftwareLibre #OpenSource

I collect slide rules, and my mother-in-law just gave me a nice addition to the collection -- which might be morphing into traditional mechanical calculating devices...it's a soroban, which seems to be a form of portable abacus. Very cool.

#math #soroban #abacus #sliderule

Stellar Debuts Smart Contracts With Protocol 20 Update - Stellar has announced the introduction of smart contracts as part of its Protocol ... - https://news.bitcoin.com/stellar-debuts-smart-contracts-with-protocol-20-update/ #stellardevelopmentfoundation #cryptocurrency #smartcontracts #justinrice #protocol20 #altcoins #soroban #stellar #crypto

Why is Stellar (XLM) price up this week? - Stellar’s pre-announcements may have caused traders to create mul... - https://cointelegraph.com/news/why-is-stellar-xlm-price-up-this-week #whyarestellarandxrpup #whyarexlmandxrpup #whyisxlmpriceup #whatisstellar #caroline #markets #stellar #soroban #ripple #usdc #rwa #xlm

#soroban_FR
Quand et pourquoi utiliser le #soroban ?

Parce que c'est bien, à tout âge; pour développer rapidité et précision, accroître sa concentration , booster sa confiance.

Rechercher #soroban_FR pour atteindre tous les pouets sur le sujet (vidéos explicatives, entraînements, leçons, partage d'expériences, ....).

@Archie8 @overholt I have a #Soroban, it only does base ten but that is enough for me. That and a good log table? Lookout. I still can’t divide on it yet, no good (any) tutors around me.

#soroban
Japan's ancient secret to better cognitive memory - BBC REEL

https://yt.artemislena.eu/watch?v=s6OmqXCsYt8

Alt. link.:

https://www.youtube-nocookie.com/embed/s6OmqXCsYt8