Discontinuous derivative

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Revision as of 08:55, 13 February 2019 by A WASSERMANN (talk | contribs)

Consider the function

[math]\displaystyle{ f: \mathbb{R} \to \mathbb{R}, x \mapsto \begin{cases} x^2*sin(1/x),& x\neq 0\\ 0, x=0 \end{cases} }[/math]

The underlying JavaScript code

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