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Chinese Bars from Katsuyo Sampo by Seki Kowa.
Published on Dec 21, 2013
In the name of Pi! Math in our lives. The use of zero, the discovery of geometry, pyramids, astronomy, you name it!
Published on Dec 21, 2013
In the name of Pi! Math in our lives. The use of zero, the discovery of geometry, pyramids, astronomy, you name it!