Mathematics Educators
Takahiro Waki's user avatar
Takahiro Waki's user avatar
Takahiro Waki's user avatar
Takahiro Waki
  • Member for 6 years, 3 months
  • Last seen more than 5 years ago
  • Yokosuka, Kanagawa, Japan
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About

I straightly say ordinary japanese.I say japanese honest opinion.I always fight with discussions on wikipedia.Also I recommend lang-8.com.I am on active in knowledge sites more than 4.

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4
Why should kids learn how to use a compass and straightedge, and not rely on a drawing program?
Jun 17, 2017
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13
Nested sudoku in entrance exam
11
On Ramanujan's curious equality for $\sqrt{2\,(1-3^{-2})(1-7^{-2})(1-11^{-2})\cdots} $
7
What are some of the big open problems in 3-manifold theory?
6
Number of pairs of rational numbers that satisfy the given relation
6
Are there any saltwater rivers on Earth?

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