Perpendicular Component of a Vector

Rarely Tested

Perpendicular Component of a Vector

The component of $$\vec a$$ perpendicular to $$\vec b$$ is:

$$\vec a_\perp=\vec a-\frac{\vec a\cdot\vec b}{|\vec b|^2}\vec b$$

Usage

- Used to separate a vector into parallel and perpendicular components.

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