In calculus, the chain rule is a formula for computing the derivative of the composition of two or more functions. That is, if f is a function and g is a function, then the chain rule expresses the derivative of the composite function f ∘ g in terms of the derivatives of f and g.
In integration, the counterpart to the chain rule is the substitution rule.
Read more about Chain Rule: History, The Chain Rule in Higher Dimensions, Further Generalizations
Famous quotes containing the words chain and/or rule:
“Man ... cannot learn to forget, but hangs on the past: however far or fast he runs, that chain runs with him.”
—Friedrich Nietzsche (1844–1900)
“The only rule is, do what you really, impulsively, wish to do. But always act on your own responsibility, sincerely. And have the courage of your own strong emotion.”
—D.H. (David Herbert)