Spindel

silviana amethyst

Equation

\[ x^2+y^2-z^2=1 \]

Properties:

Some story

Originally, I printed this hyperboloid of one sheet for a talk I gave at NCSU and Texas A&M, on monodromy. Particularly, this hyperboloid was used to talk about Schubert Calculus, with the intersection of 4 lines in 3-space.

Bertini_real input files

input

CONFIG
tracktype: 1;
odepredictor: 6;
endgamenum:2;
numsamplepoints: 4;
sharpendigits: 30;
finaltol: 1e-13;
END;
INPUT

variable_group x, y, z;
function f;
f = x^2+y^2-z^2-1;
END;