March 2004
Beginner
504 pages
9h 2m
English
Content preview from Beginning Math and Physics for Game Programmers
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Polar Coordinates Versus Cartesian Coordinates
In the preceding section, you found that positive or negative is sufficient for the direction of a vector in one dimension. However, in 2D and 3D, positive or negative just isn't enough. There are two different forms for describing a vector in 2D: polar coordinates and Cartesian coordinates. Polar coordinates are a little more intuitive, so let's look at them first.
Polar CoordinatesVector where |
is the magnitude of A and θ is the direction.Figure 4.2 illustrates polar coordinates.
Figure 4.2. Vector ...
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