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Old 2021-09-07, 03:02   #2
chalsall
If I May
 
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"Chris Halsall"
Sep 2002
Barbados

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Quote:
Originally Posted by MattcAnderson View Post
Have a look.
On every whiteboard I encounter I write \sqrt{-1}^2=? in the upper right-hand corner.

Very few find it funny. Which is exactly the point.
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