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 surface is drawn in light blue with surface being a tilted plane going down to a height of zero as the the x and y coordinates go to zero. This surface has a V-shape above each of the x and y axes.