This demo includes a single graphical display window that displays the curve X(t) = (a*cosh(t)*cos(t), a*cosh(t)*sin(t), b*sinh(t)). You can change t0, a, b, and X(t) and choose whether or not to show the entire curve and the position vector X(t0) in the control window. You can also choose whether or not to show the hyperboloid of one sheet on which X(t) lies.