Abacus - Simple Soroban Abacus 4+

Name: Abacus - Simple Soroban Abacus
Author: Switt Kongdachalert

Switt Kongdachalert

Conçu pour iPad

- Gratuit

Description

A simple soroban abacus that also shows the number representing the value of each column.

An abacus is a tool that has been used since ancient times to calculate. Calculations with numbers in the millions have been performed using the abacus, showing that it is a powerful tool.

Mental math can be performed incredibly accurately by those who have mastered the abacus. And after witnessing some incredible mental math skills by a person who has used an abacus during his early years as a salesman, I decided to create a "beginner's abacus" based on the soroban abacus, which is a Japanese variant of the abacus.

I hope this app will be of use to many people who are starting some interest in the abacus.

[ Usage ] :
= swipe up/down on the beads to make them move.
= Shake the device to reset the beads.
= Numbers on the top show the "actual" numbers of each column

20 nov. 2017

Version 1.1

This app has been updated by Apple to display the Apple Watch app icon.

- Can now slide finger across to move beads; smoother operation.
- Can now adjust number of columns!
- Now supports both iPhone and iPad.

Le développeur Switt Kongdachalert n’a fourni aucune information à Apple concernant ses pratiques en matière de confidentialité et de traitement des données.