Skip to main content\(\newcommand{\R}{\mathbb{R}}
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A three-dimensional plot with axes labeled
\(x\text{,}\) \(y\text{,}\) and
\(z\text{.}\) A plane extends from the
\(z\)-axis in the direction of positive
\(x\) and
\(y\) coordinates. On this plane is a circle, centered on the
\(xy\)-plane, with 13 points on the circle. Each of the points on the circle is rotated around the
\(z\)-axis as shown by circles parallel to the
\(xy\)-plane.