I am sorry because I write the following in Japanese. Show more

Recently I was taught the following two expressions formula, Show more

Recently, I made the folloing image. Show more

Now, I am interested in the following three. Show more

The best memory of my internet life is that twitter.com/takatasennsei taught me the attached images. In Japanese, it seems to be well known as "3×3の完全虫食い算一覧" gensu.co.jp/saito/puzzle/a65wo

The attached image is rough summary content of New Year Card, sorry Japanese.


A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.

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