We like mechanical calculators like slide rules, but we have to admit that we had not heard of the Ott Derivimeter that [Chris Staecker] shows us in a recent video. As the name implies, the ...
Imagine learning to use implicit differentiation to find the derivative of an inverse function. Then imagine doing it at 4 a.m. That's how it is for high school students like Dimitris Demetriou, a ...
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