; Draws a Bezier curve between two curves along with the
; tangent lines to the control point.
; nell bezier1.nll START 3 | nellsvg 1.25 1.5 in 0.015 1 > bezier1.svg
l = 1;
lc = 1.5;
ac = pi/6;
lp = sqrt(l^2+lc^2-2*l*lc*cos(ac));
ap = pi-asin(lc*sin(ac)/lp);
START : P(0.1,0.1) T(pi/6) [T(ac) L(lc) T(-ac-ap) L(lp)] Q(1,1.5,ac);