Changes

The '''chain rule''' in [[calculus]] is a formula for determining the [[derivative]] of a composite function:

The '''chain rule''' in [[calculus]] is a formula for determining the [[derivative]] of a [[functional composition|composite function]]:

:<math>f(g(x))' = f'(g(x))\times g'(x)</math>

:<math>f(g(x))' = f'(g(x))\times g'(x)</math>

The chain rule can also be expressed as:

The chain rule can also be expressed as:

:<math>\frac {dy}{dx} = \frac {dy} {du} \times \frac {du}{dx}.</math>

:<math>\frac {dy}{dx} = \frac {dy} {du} \times \frac {du}{dx}.</math>

[[category:mathematics]]

[[category:Calculus]]