Graph of the function f:R→R:x↦{x2sin⁡(1x)x≠00x=0{\displaystyle f:\mathbb {R} \to \mathbb {R} :x\mapsto {\begin{cases}x^{2}\sin \left({\frac {1}{x}}\right)&amp;x\neq 0\\0&amp;x=0\end{cases}}}.
Own work
Stephan Kulla (User:Stephan Kulla)