ARTIST: Tom Lehrer TITLE: The Derivative Song Lyrics Tune: "There'll be Some Changes Made" You take a function of x and you call it y Take any x-nought that you care to try You make a little change and call it delta x The corresponding change in y is what you find nex' And then you take the quotient and now carefully Send delta x to zero, and I think you'll see That what the limit gives us, if our work all checks Is what we call dy/dx It's just dy/dx

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