senaonp / abacus9.com

online abacus applet | soroban (そろばん) | suanpan (算盘 ) | binary abacus

abacus9 | an online abacus applet - abacus9.com

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usage

applet can be run in a web browser by checking out the repo and opening index.html in a web browser

running abacus9 on NGINX web server with Docker

docker build --tag abacus9:dev .
docker run -p 8001:80 -d --name abacus9 abacus9:dev
# with this config, abacus9 runs on localhost:8001

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shareable abacus links

• soroban (そろばん) - https://abacus9.com/#soroban
• suanpan (算盘) - https://abacus9.com/#suanpan
• binary abacus - https://abacus9.com/#binary

features

• 3 abacus types, each with 9 columns
• soroban (そろばん) - 1 upper bead / 4 lower beads
• suanpan (算盘) - 2 upper beads / 5 lower beads
• binary abacus - 1 bead
• practice exercise - setting the abacus to a random value
• responsive viewport and styling to support desktop and mobile devices
• abacus9 language versions [ EN | CN | JP ]

feature wishlist

• (game) addition/subtraction arithmetic exercises
• (code) refactoring

Mobile preview: