Card 1. Suanpan – Abacus . The abacus is an ancient calculator still used in China and other Asian countries. In Chinese it is called a “Suanpan.” It is a frame divided into an upper and lower section by a bar called the “beam.” The abacus can b

The tutorial is intended to serve as a quick introduction to the software for the students in Professor De’s MANE 4240/CIVL 4240 course at RPI and should, in no way, be deemed as a replacement of the official documentation distributed by the company tha

How to Use an Abacus. The abacus (the suanpan is the most useful variety) is a deceptively simple calculating tool still used all over the world. It's a useful learning device for the visually impaired, as well as for anyone who wants to...