10 beginchar(incr code, 0, 0, 0);
11 mw:=(minwidth+code*delwidth)*pt;
12 x3= -x1= .5mw; x2= y1= y3 = 0;
13 y2= max(min_bow, slope*mw);
14 y2:= min(y2, max_bow);
15 penpos1(.15thick,90); penpos2(thick,90); penpos3(.15thick,90);
16 penstroke (flex(z1e,z2e,z3e));
17 currentpen:= pencircle; draw (flex(z1,z2,z3));
21 beginchar(code+54, 0, 0, 0);
22 currentpicture:=p reflectedabout (origin, right);