F(x)=x.sin(1/x)
— Vincent Pantal🍩ni (@panlepan) February 23, 2018
Counter example for :
continuous => differentiable.#mathGIF with @geogebra pic.twitter.com/RPKdoiz2fN
from Twitter https://twitter.com/GuideCalculator
February 24, 2018 at 03:54PM
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