net(F)
Prints a face. The vertices are printed without any brackets and with one space between them. Also prints the polynomial ring which contains the vertices.
i1 : K=QQ;
i2 : R=K[x_0..x_4];
i3 : face {x_0,x_1} o3 = x x 0 1 o3 : face with 2 vertices in R