beginchar("H",em#,5cap#/7,0dth#); "Eta"; path p[]; save ww,hh,dd; ww = w/10; hh = h/5; b := ww; y3 = y6 = 9hh; x1 = x2 = x3 = x9 = x11; x4 = x5 = x6 = x10 = x12; x1 = 10ww - x4 = ww; y1 = y4 = 0; x0 = 5ww; y2 = y5 = .25[y1,y3]; y0 = y9 = y10 = .5[y1,y3]; y11 = y12 = .75[y1,y3]; z13 = z9; z14 = z10; z16 = z0; x24 = x15 = x0; y15 = .75[y0,y11]; y24 = .75[y0,y5]; z17 = .5[z9,z0]; z18 = .5[z10,z0]; y21 = y22 = .75[y11,y3]; x22 = x18; x21 = x17; z23 = .5[z9,z10]; penpos1(2b,0); penpos2(.6b,0); penpos9(1.7b,0); penpos11(.6b,0); penpos3(b,0); penpos6(b,0); penpos12(.6b,0); penpos10(1.7b,0); penpos5(.6b,0); penpos4(2b,0); penpos7(b,90); penpos13(b,90); penpos0(b,90); penpos14(b,90); penpos8(b,90); penpos15(.1b,0); penpos24(.1b,0); penpos16(2b,0); penpos17(.6b,90); penpos18(.6b,90); penstroke z1e..z2e..z9e..z11e..z3e; penstroke z4e..z5e..z10e..z12e..z6e; penstroke z13e..z17e..z0e..z18e..z14e; penstroke z15e..z16e; penstroke z24e..z16e; pickup pencircle scaled .4pt; draw z2{right}..{up}z17..{right}z22; draw z5{left}..{up}z18..{left}z21; draw fullcircle scaled .5b shifted (z22); draw fullcircle scaled .5b shifted (z21); pickup pencircle scaled b; drawdot z3; drawdot z6; endchar;