Mathematical tools

Yupana

A yupana (from Quechua: yupay 'count') is an abacus used to perform arithmetic operations, dating back to the time of the Incas. (Wikipedia).

Yupana
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Inca counting boards and the table yupana

The table yupana artifacts from the Inca empire. These are often thought to be sophisticated counting boards, but there really isn't any evidence of that. Thanks to Cinzia Florio for helping to answer some of my questions. This is episode 67 of my video series about old calculating devi

From playlist Calculating Devices Review / HowTos

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The BuShou of HanZi :禾

A brief description of the BuShou of 禾.

From playlist The BuShou of HanZi

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The BuShou of HanZi :囗

A brief description of the BuShou of 囗.

From playlist The BuShou of HanZi

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The BuShou of HanZi :宀

A brief description of the BuShou of 宀.

From playlist The BuShou of HanZi

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The BuShou of HanZi :耳

A brief description of the BuShou of 耳.

From playlist The BuShou of HanZi

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History of Mathematics Project: Computable & Interactive Virtual Exhibits of Mathematical Artifacts

The History of Mathematics Project, (website here https://history-of-mathematics.org/) is a virtual gallery of exhibits highlighting physical artifacts that are important to the history of mathematics. Extensive computational explanations and interactive content make use of the Wolfram Lan

From playlist Wolfram Technology Conference 2020

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The BuShou of HanZi : 酉

A brief description of the BuShou of 酉.

From playlist The BuShou of HanZi

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The BuShou of HanZi :艸

A brief description of the BuShou of 艸.

From playlist The BuShou of HanZi

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The BuShou of HanZi : 魚

A brief description of the BuShou of 魚.

From playlist The BuShou of HanZi

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The BuShou of HanZi :气

A brief description of the BuShou of 气.

From playlist The BuShou of HanZi

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The BuShou of HanZi :衣

A brief description of the BuShou of 衣.

From playlist The BuShou of HanZi

Related pages

Product (mathematics) | Multiplication | Fibonacci | Distributive property | Square | Quipu | Sign-value notation | Addition | Causality | Polygon | Abacus | Diagonal