Conic K=-1 Surface of Revolution

conic Keq 1 revol 001
Conic K = -1 Surface of Revolution

One half of these surfaces (cut in the middle) converge to the Pseudosphere

conic k 1 sor st
conic k 1 sor st
conic k 1 sor sw
conic k 1 sor sw

Conic_K=_-1_Surface_of_Revolution.pdf