Joke

Sunday 4 April 2004 at 2:25 pm | In Articles | Post Comment

Joi Ito’s Page contains a wonderful joke which I really have to repeat here.

    After explaining to a student through various lessons and examples that \displaystyle \lim_{x \to 8} \dfrac{1}{x-8}=\infty
    I tried to check if she really understood that, so I gave her a different example. This was the result:
    \displaystyle \lim_{x \to 5} \dfrac{1}{x-5}= \rotatebox{90}{5}

😀

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