Tk-Yupana

alpha

kunturweb

Incan Abacus Emulator

Download tkYupana-r0.5.5.tar.gz

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Windows BSD Linux

Screenshots

Yupana by Florio (sign-value notation) - multilpication algorithm)

Yupana by Wassen (positional, base 10) - Number representation

Yupana by Glynn (positional, base 10) - Multiplication algorithm

Yupana by Florio (sign-value notation) - Addition algorithm

Yupana by Glynn (positional, base 10) - Number representation

Yupana by Radicati (positional, base 10) - Multiplication Algorithm

Description

The Yupana was an ancient calculating device of the Incas. This simple program compares different theories:
- positional notation
* Base 10 by H. Wassen
(representation, addition)
* Base 10 by C. Radicati di Primeglio
(representation, addition, subtraction, multiplication)
* Base 10 by W. Burns Glynn
(representation, addition, multiplication)
* Base 40 by N. De Pasquale
(representation)
- sign-value notation
* Powers of ten by C. Florio
(representation, addition, multiplication)

GUI & Manual main translations: en, es, it
Only GUI translations (alpha version): qu, pt, fr, de, ro, ru, jp

Tk-Yupana Web Site