# Vector Equations of 3D Graphic Objects

## Vector in 3D Space

1-1. Position Vector

1-2. Vector Addition

1-3. Parallel Vector

## Lines in 3D Space

2-1. How to Draw a Line

2-2. Direction Vector of a Line

2-3. Base of a Line

## Planes in 3D Space

3-1. Base of a Plane

3-2. Direction of a Plane

## Normal Vectors

4-1. Normal Vectors to a Line

4-2. Normal Vector to a Plane

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