 % Knot 8_5 (DHF, based on Knotinfo diagram)
 % process with doknotscad
% calculated with knotadjust.f
% lines  a_x(j) b_x(j)  a_y(j)  b_y(j)  a_z(j)  b_z(j)
% corresponding to  x(s) = sum_ja_x(j)cos(js))+b_x(j)sin(js)  etc
