For example, let f and g be defined as(adsbygoogle = window.adsbygoogle || []).push({});

[tex]f=x^2[/tex]

[tex]g=2xy[/tex]

I would say that the partial derivative of g with respect to y equals theperfect derivativeof f(x). I've never been convinced that this is standard (or even correct) terminology. I am curious what some of you would use in place ofperfect derivative.

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# What should we call the type of dervative that isn't a partial derivative?

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