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Q81Section II (Mathematics)81 of 190

Cylinders are developable — Gaussian curvature vanishes identically

The Gaussian curvature of the elliptic cylinder {(x,y,z)∈R3:x2/2+y2/3=1}\{(x,y,z)\in\mathbb{R}^3: x^2/2+y^2/3=1\} is:

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