Differential Element dA

Definition

A differential element dA is a small area on a surface that is used in calculus to approximate the total area of the surface. It is typically represented by a small rectangle or square.

Analogy

Think of a differential element dA as a tiny pixel on your computer screen. Just like many pixels make up an image, many differential elements make up the total area of a surface.

Related terms

Surface Area: The total area of a three-dimensional object. For example, the surface area of a cube is found by adding up the areas of all its faces.

Double Integral: An integral that calculates the volume under a curved surface in two dimensions. It involves integrating over both x and y coordinates.

Triple Integral: An integral that calculates the volume under a curved surface in three dimensions. It involves integrating over x, y, and z coordinates.