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Vectors in Space (Introduction)

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Vectors, magnitude, direction, and basic 3D representation.

14.1 Vector idea

A vector has:

  • magnitude (length)
  • direction

In 3D we often write a vector as:

TEXT
v = <a, b, c>

14.2 Magnitude

TEXT
|v| = √(a^2 + b^2 + c^2)