partial differential

Field Operators: Grad, Div, and Curl

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Menu (linked Index) Field Operators: Grad, Div, and Curl Last Update: August 18, 2025 Introduction Definitions Graphing a Vector Field Differentiation Basics The Gradient Operator Divergence Operator The Laplacian Direction of Axis of Rotation The Curl Operator Excellent Educational Video References Appendix 1: Uses of the Derivative Introduction This post is about three fundamental operators […]

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The Derivative

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Menu (linked Index) The Derivative Last Update: October 18, 2025 Introduction The Derivative Derivative Rules Derivatives of Some Useful Functions Ordinary Derivative Velocity and Acceleration As Derivatives Partial Derivative Introduction This article is a high level introduction to the mathematical tool called differentiation. At its core, differentiation is the process of finding the instantaneous rate

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