(adsbygoogle = window.adsbygoogle || []).push({}); 1. In Murray Spiegel's Advanced Calculus, in solved problem 10.18 he describes a cylinder as having equation x^2 + y^2 = ax. Surely this equation is for a 2-D object. Whats going on as a cylinder is 3D?

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Equation of a cylinder

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