Comments on: How To Understand Derivatives: The Product, Power & Chain Rules https://betterexplained.com/articles/derivatives-product-power-chain/ Math lessons that click Wed, 13 Aug 2025 11:55:49 +0000 hourly 1 By: Manish Soni https://betterexplained.com/articles/derivatives-product-power-chain/#comment-568384 Wed, 13 Aug 2025 11:55:49 +0000 http://betterexplained.com/?p=2218#comment-568384 I see an issue here with miles / second = miles / hour * 3600. It should be miles * 3600 / house is n't it?

]]> By: Javier Guia https://betterexplained.com/articles/derivatives-product-power-chain/#comment-567587 Sat, 03 Aug 2019 00:04:30 +0000 http://betterexplained.com/?p=2218#comment-567587 The first diagram on the multiplication section, made me think of Derivates as trying to substract the incremental value of each variable from the initial function. To get the incremental value of each variable you have to consider them as constants and add them all.
On the first example we have x^2 = x*dx + x*dx + dx*dx and the derivate is x^2 - dx*dx equals x*dx * x*dx

]]> By: Amresh https://betterexplained.com/articles/derivatives-product-power-chain/#comment-567494 Fri, 17 May 2019 15:30:18 +0000 http://betterexplained.com/?p=2218#comment-567494 In reply to raju.

At first I am replying after 5 years so it makes no sense then again your doubt has to be cleared. Since from the diagram you can see that area df*g and area dg*f are overlapping and so df*dg area has been neglected.

]]> By: Mitchell Buffington https://betterexplained.com/articles/derivatives-product-power-chain/#comment-567452 Fri, 05 Apr 2019 20:44:15 +0000 http://betterexplained.com/?p=2218#comment-567452 Just about to finish Calc 1 for my bachelors and about to head into Calc 2 next week. You explanation of derivatives made it way more clear to me and helped with a lot of confusion. Great job I will be reading your explanations on the rest of the subjects you covered.

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