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directional derivative

American

noun

Mathematics.

the limit, as a function of several variables moving along a given line from one specified point to another on the line, of the difference in the functional values at the two points divided by the distance between the points.

Example Sentences

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The directional derivative can also be generalized to functions of three variables.

From Textbooks • Mar. 30, 2016

The gradient can be used in a formula to calculate the directional derivative.

From Textbooks • Mar. 30, 2016

Equation 4.36 provides a formal definition of the directional derivative that can be used in many cases to calculate a directional derivative.

From Textbooks • Mar. 30, 2016

A directional derivative represents a rate of change of a function in any given direction.

From Textbooks • Mar. 30, 2016

We have already seen one formula that uses the gradient: the formula for the directional derivative.

From Textbooks • Mar. 30, 2016

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023