[CentralOH] 2017-02-10 道場 Scribbles 落書/惡文? Part 5: pi/tau; jupyter on ubuntu; asciinema

[jep200404 at columbus.rr.com]

Hopefully, rot13 content below gets past email filters:
A unix command for rot13 is:

    tr '[a-zA-Z]' '[n-za-mN-ZA-M]' 

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