% Knot 8_21r (DHF, from Knotinfo)
% 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
    0.000000    0.000000    0.000000
    0.000000    0.170883    0.020522    0.000000    0.000000   -0.004864
    0.000000    0.030553    0.129338    0.000000    0.000000    0.075169
    0.000000    0.267589   -0.246129    0.000000    0.000000    0.010157
    0.000000    0.016894   -0.037192    0.000000    0.000000   -0.031731
    0.000000   -0.025296   -0.007090    0.000000    0.000000    0.107996
    0.000000   -0.004459    0.002455    0.000000    0.000000   -0.000255
    0.000000   -0.001377    0.012341    0.000000    0.000000   -0.003170
    0.000000   -0.024454    0.006372    0.000000    0.000000   -0.021855
    0.000000   -0.012339   -0.002953    0.000000    0.000000    0.001585
    0.000000    0.006143    0.002566    0.000000    0.000000   -0.008385