When I take the differential of y wrt t (being t a parameter (time)) I get the velocity of the y-coordinate, if take the second differential of y wrt t, thus I get the aceleration of the y-coordinate... ok! But what means to differentiate the y-coordinate wrt x-coordinate, or wrt y, or then differentiate twice wrt to y, or x, or xy. ?(adsbygoogle = window.adsbygoogle || []).push({});

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# Differentiation of coordinate wrt another coordinate

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