What is Tk-Yupana software from Kunturweb, what is it used for and how to use it?
Tcl-based Incan Abacus emulator
Tk-Yupana was created as a lightweight and open source tool that manages to implement the Burns Glynn algorithm. The Incan Abacus, also known as the Yupana is an ancient calculating device of the Incas. Glynn argued that the Yupana tablet is a calculator in base 10 with a space reserved for memory.
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