The chair surface is a surface with tetrahedral symmetry which looks like an inflatable chair from the 1970s. It is given by the implicit equation

The surface illustrated above has , , and .

The chair surface is a surface with tetrahedral symmetry which looks like an inflatable chair from the 1970s. It is given by the implicit equation

The surface illustrated above has , , and .

Weisstein, Eric W. "Chair Surface." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/ChairSurface.html