chain rule

American  

noun

Mathematics.

1. the theorem that defines the method for taking the derivative of a composite function.

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chain rule British  

noun

1. maths a theorem that may be used in the differentiation of the function of a function. It states that d u /d x = (d u /d y )(d y /d x ), where y is a function of x and u a function of y

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Etymology

Origin of chain rule

First recorded in 1860–65

Example Sentences

I knew that if kids could solve real-world problems involving compositions of functions in Algebra 2, then when they got to calculus, they would be set up well for the chain rule.

From New York Times

But though she my eyes might chain, Rule my ebbing flowing brain, Truth alone, without, within, Can the soul's high homage win!

From Project Gutenberg