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Elementary Calculus  Partial Differentiation Surfaces Sphere |
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SphereThe Sphere The sphere of radius r and center P(a, b, c) has the equation
It is the set of all points at distance r from P (Figure 11.1.5). A sphere intersects any plane in a circle (possibly a single point or no intersection).
Figure 11.1.5
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Last Update: 2006-Nov-17