Linear Algebra - Lecture 5: The Length of a Vector

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We introduce the length of a vector, which can be derived via the Pythagorean theorem in 2 and 3 dimensions, and is defined via the dot product in general.

Please leave a comment below if you have any questions, comments, or corrections.

Timestamps:
00:00 - Introduction and 2D/3D derivations
07:11 - Definition and basic examples
10:43 - Mathematical properties theorem
18:26 - Unit vectors and normalization
  1. Nathaniel Johnston
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