Unformatted text preview: of bowl shape, known as an elliptic paraboloid (Figure 3.35 ). x y z Figure 3.35: Elliptic Paraboloid 4 x 2 + y 2 − z = 0 (c) If both x and y appear squared, and their coe±cients have opposite signs, then our level sets are hyperbolas centered at the...
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 Spring '08
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 Calculus, realvalued functions, Vertical planes, opposite signs, bowl shape

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