Tetrahedral Surface

A Surface given by the parametric equations

$$x = A(u-a)^m(v-a)^n$$

$$y = B(u-b)^m(v-b)^n$$

$$z = C(u-c)^m(v-c)^n.$$

References

Eisenhart, L. P. A Treatise on the Differential Geometry of Curves and Surfaces. New York: Dover, p. 267, 1960.