cmchar "\textstyle up integral sign";
beginchar(0,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle double up integral sign";
beginchar(2,10u#+tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
path haut;
path bas;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos11(curve,0); pos12(hair,0); pos13(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
rt x1r=hround(w-u-tdec); x9=w-tdec-x1; x7=w-tdec-x3=3u;
x19=x9+tdec;x17=x7+tdec;
y19=y9;y18=y8;y17=y7;
x11=x1+tdec;x13=x3+tdec;
y11=y1;y13=y3;
x5=x4=x6; lft x5r=hround(.5w-.5tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(13,12,11); bulb(17,18,19);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted z0;
filldraw bas shifted z0;
penlabels(range 1 thru 19); endchar;

cmchar "\textstyle triple up integral sign";
beginchar(4,10u#+2tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
path haut;
path bas;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos11(curve,0); pos12(hair,0); pos13(vair,90);
pos21(curve,0); pos22(hair,0); pos23(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
pos27(vair,-90); pos28(hair,-180); pos29(curve,-180);
rt x1r=hround(w-2tdec-u); x9=w-2tdec-x1; x7=w-2tdec-x3=3u;
x19=x9+tdec;x17=x7+tdec;
x29=x19+tdec;x27=x17+tdec;
y29=y19=y9;y28=y18=y8;y27=y17=y7;
x11=x1+tdec;x13=x3+tdec;
x21=x11+tdec;x23=x13+tdec;
y21=y11=y1;y23=y13=y3;
x5=x4=x6; lft x5r=hround(.5w-tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(13,12,11); bulb(17,18,19);
bulb(23,22,21); bulb(27,28,29);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted z0;
filldraw bas shifted z0;
filldraw haut shifted 2z0;
filldraw bas shifted 2z0;
penlabels(range 1 thru 29); endchar;

cmchar "\textstyle fourth up integral sign";
beginchar(6,10u#+3tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
path haut;
path bas;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos11(curve,0); pos12(hair,0); pos13(vair,90);
pos21(curve,0); pos22(hair,0); pos23(vair,90);
pos31(curve,0); pos32(hair,0); pos33(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
pos27(vair,-90); pos28(hair,-180); pos29(curve,-180);
pos37(vair,-90); pos38(hair,-180); pos39(curve,-180);
rt x1r=hround(w-3tdec-u); x9=w-3tdec-x1; x7=w-3tdec-x3=3u;
x19=x9+tdec;x17=x7+tdec;
x29=x19+tdec;x27=x17+tdec;
x39=x29+tdec;x37=x27+tdec;
y39=y29=y19=y9;y38=y28=y18=y8;y37=y27=y17=y7;
x11=x1+tdec;x13=x3+tdec;
x21=x11+tdec;x23=x13+tdec;
x31=x21+tdec;x33=x23+tdec;
y31=y21=y11=y1;y33=y23=y13=y3;
x5=x4=x6; lft x5r=hround(.5w-1.5tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(13,12,11); bulb(17,18,19);
bulb(23,22,21); bulb(27,28,29);
bulb(33,32,31); bulb(37,38,39);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted z0;
filldraw bas shifted z0;
filldraw haut shifted 2z0;
filldraw bas shifted 2z0;
filldraw haut shifted 3z0;
filldraw bas shifted 3z0;
penlabels(range 1 thru 39); endchar;

cmchar "\textstyle contour up integral sign";
beginchar(8,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw fullcircle scaled .7w shifted z5;  % contour
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle contour double up integral sign";
beginchar(10,10u#+tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
path haut;
path bas;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos11(curve,0); pos12(hair,0); pos13(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
rt x1r=hround(w-u-tdec); x9=w-tdec-x1; x7=w-tdec-x3=3u;
x19=x9+tdec;x17=x7+tdec;
y19=y9;y18=y8;y17=y7;
x11=x1+tdec;x13=x3+tdec;
y11=y1;y13=y3;
x5=x4=x6; lft x5r=hround(.5w-.5tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(13,12,11); bulb(17,18,19);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted z0;
filldraw bas shifted z0;
pickup rule.nib; autorounded;
z50=z5+.5z0;
draw fullcircle xscaled .75w yscaled .5w shifted z50;  % contour
penlabels(range 1 thru 19); endchar;

cmchar "\textstyle contour triple up integral sign";
beginchar(12,10u#+2tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
path haut;
path bas;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos11(curve,0); pos12(hair,0); pos13(vair,90);
pos21(curve,0); pos22(hair,0); pos23(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
pos27(vair,-90); pos28(hair,-180); pos29(curve,-180);
rt x1r=hround(w-2tdec-u); x9=w-2tdec-x1; x7=w-2tdec-x3=3u;
x19=x9+tdec;x17=x7+tdec;
x29=x19+tdec;x27=x17+tdec;
y29=y19=y9;y28=y18=y8;y27=y17=y7;
x11=x1+tdec;x13=x3+tdec;
x21=x11+tdec;x23=x13+tdec;
y21=y11=y1;y23=y13=y3;
x5=x4=x6; lft x5r=hround(.5w-tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(13,12,11); bulb(17,18,19);
bulb(23,22,21); bulb(27,28,29);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted z0;
filldraw bas shifted z0;
filldraw haut shifted 2z0;
filldraw bas shifted 2z0;
pickup rule.nib; autorounded;
z50=z5+z0;
draw fullcircle xscaled .8w yscaled .35w shifted z50;  % contour
penlabels(range 1 thru 29); endchar;

cmchar "\textstyle right arrow up contour up integral sign";
beginchar(14,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw fullcircle scaled .7w shifted z5;  % contour
pos51(1.35rule_thickness,90);pos52(1.2vair,135);pos53(1.2vair,45);
x0=.345w;y0=.05w;
z51=z5+z0;
y52=y53=y51-.165w;
x52=x51-.16w;
x53=x51+.16w;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
penlabels(51,52,53);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle left arrow up contour up integral sign";
beginchar(16,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw fullcircle scaled .7w shifted z5;  % contour
x0=-.345w;y0=.05w;
z51=z5+z0;
pos51(1.35rule_thickness,90);pos52(1.2vair,135);pos53(1.2vair,45);
y52=y53=y51-.165w;
x52=x51-.16w;
x53=x51+.16w;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
penlabels(51,52,53);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle right arrow down contour up integral sign";
beginchar(18,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw fullcircle scaled .7w shifted z5;  % contour
x0=.345w;y0=-.05w;
z51=z5+z0;
pos51(1.35rule_thickness,-90);pos52(1.2vair,135);pos53(1.2vair,45);
y52=y53=y51+.165w;
x52=x51-.16w;
x53=x51+.16w;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
penlabels(51,52,53);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle left arrow down contour up integral sign";
beginchar(20,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw fullcircle scaled .7w shifted z5;  % contour
x0=-.345w;y0=-.05w;
z51=z5+z0;
pos51(1.35rule_thickness,-90);pos52(1.2vair,135);pos53(1.2vair,45);
y52=y53=y51+.165w;
x52=x51-.16w;
x53=x51+.16w;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
penlabels(51,52,53);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle square up integral sign";
beginchar(22,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-.5ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
x51=x52=x5+.35w;
x53=x54=x5-.35w;
y51=y54=y5+.35w;
y52=y53=y5-.35w;
draw z51--z52--z53--z54--cycle;
penlabels(51,52,53,54);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle double square up integral sign";
beginchar(24,10u#+tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-.5ic#); pickup fine.nib;
path haut;
path bas;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos11(curve,0); pos12(hair,0); pos13(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
rt x1r=hround(w-u-tdec); x9=w-tdec-x1; x7=w-tdec-x3=3u;
x19=x9+tdec;x17=x7+tdec;
y19=y9;y18=y8;y17=y7;
x11=x1+tdec;x13=x3+tdec;
y11=y1;y13=y3;
x5=x4=x6; lft x5r=hround(.5w-.5tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(13,12,11); bulb(17,18,19);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted z0;
filldraw bas shifted z0;
pickup rule.nib; autorounded;
z50=z5+.5z0; % au milieu
x51=x54=x50-.55tdec-.35(w-tdec);
x52=x53=x50+.55tdec+.35(w-tdec);
y51=y52=y50+.35(w-tdec);
y53=y54=y50-.35(w-tdec);
draw z51--z52--z53--z54--cycle;
penlabels(51,52,53,54);
penlabels(range 1 thru 19); endchar;

cmchar "\textstyle contour dot up integral sign";
beginchar(26,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
cullit;
pickup rule.nib; autorounded;
unfill fullcircle scaled .7w shifted z5;  % hole
cullit;
draw fullcircle scaled .7w shifted z5;  % contour
fill fullcircle scaled(1.3dot_size+eps) shifted z5;  % dot
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle right contour dot up integral sign";
beginchar(28,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-.2ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
x61=x63=x5; y61=y62=y5-.45w; y63=y64=y5+.45w;
x62=x64=1.3w;
x0=w-.3w;y0=y5;
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
fill z61--z62--z64--z63--cycle;
cullit;
picture tempp;
tempp = currentpicture;
currentpicture:=nullpicture;
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
cullit;
pickup rule.nib; autorounded;
cull tempp keeping (1,infinity) withweight 3;
addto tempp doublepath fullcircle scaled .7w shifted z0 withpen currentpen;  % contour
cull tempp dropping (-infinity,3);
unfill fullcircle scaled .7w shifted z0;  % hole
cullit;
fill fullcircle scaled(1.3dot_size+eps) shifted z0;  % dot
currentpicture:=currentpicture+tempp;
penlabels(range 0 thru 9); endchar;

cmchar "\textstyle half contour dot up integral sign";
beginchar(30,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
x61=x63=x5; y61=y62=y5-.45w; y63=y64=y5+.45w;
x62=x64=w;
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
fill z61--z62--z64--z63--cycle;
cullit;
picture tempp;
tempp = currentpicture;
currentpicture:=nullpicture;
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
cullit;
pickup rule.nib; autorounded;
cull tempp keeping (1,infinity) withweight 3;
addto tempp doublepath fullcircle scaled .7w shifted z5 withpen currentpen;  % contour
cull tempp dropping (-infinity,3);
unfill fullcircle scaled .7w shifted z5;  % hole
cullit;
fill fullcircle scaled(1.3dot_size+eps) shifted z5;  % dot
currentpicture:=currentpicture+tempp;
penlabels(range 0 thru 9); endchar;

cmchar "\textstyle half square dot up integral sign";
beginchar(32,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-.5ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
x61=x63=x5; y61=y62=y5-.5w; y63=y64=y5+.5w;
x62=x64=w;
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
fill z61--z62--z64--z63--cycle;
cullit;
picture tempp;
tempp = currentpicture;
currentpicture:=nullpicture;
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
cullit;
pickup rule.nib; autorounded;
x51=x52=x5+.35w;
x53=x54=x5-.35w;
y51=y54=y5+.35w;
y52=y53=y5-.35w;
cull tempp keeping (1,infinity) withweight 3;
addto tempp doublepath z51--z52--z53--z54--cycle withpen currentpen;  % square
cull tempp dropping (-infinity,3);
unfill z51--z52--z53--z54--cycle;  % hole
cullit;
fill fullcircle scaled(1.3dot_size+eps) shifted z5;  % dot
currentpicture:=currentpicture+tempp;
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle circulation up integral sign";
beginchar(34,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw halfcircle scaled .7w rotated 30 shifted z5;  % contour
draw halfcircle scaled .7w rotated 120 shifted z5;  % contour
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle right arrow down half contour up integral sign";
beginchar(36,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
x99=x5; y99=y5-.1w;
pickup rule.nib; autorounded;
draw halfcircle scaled .7w shifted z99;  % contour
x0=.345w;y0=-.05w;
z51=z99+z0;
pos51(1.35rule_thickness,-90);pos52(1.2vair,135);pos53(1.2vair,45);
y52=y53=y51+.165w;
x52=x51-.16w;
x53=x51+.16w;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
penlabels(51,52,53);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle right arrow up half contour up integral sign";
beginchar(38,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
x99=x5; y99=y5+.1w;
pickup rule.nib; autorounded;
draw halfcircle scaled .7w rotated 180 shifted z99;  % contour
pos51(1.35rule_thickness,90);pos52(1.2vair,135);pos53(1.2vair,45);
x0=.345w;y0=.05w;
z51=z99+z0;
y52=y53=y51-.165w;
x52=x51-.16w;
x53=x51+.16w;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
penlabels(51,52,53);
penlabels(range 1 thru 9); endchar;

cmchar "\textstyle functional up integral sign";
beginchar(40,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib;
y10=y5;
x10=x9l;x5=.5[x10,x11];
y11-y10=.102(y3-y7);
draw z10..z11;
penlabels(range 1 thru 11); endchar;

cmchar "\textstyle bar up integral sign";
beginchar(42,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib;
y10=y11=y5;
x10=x9l;x5=.5[x10,x11];
draw z10..z11;
penlabels(range 1 thru 11); endchar;

cmchar "\textstyle double bar up integral sign";
beginchar(44,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib;
y10=y11=y5+u;
y12=y13=y5-u;
x10=x12=x9l;x5=.5[x10,x11]; x13=x11;
draw z10..z11;
draw z12..z13;
penlabels(range 1 thru 13); endchar;

cmchar "\textstyle x up integral sign";
beginchar(46,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib;
x10=x12=x9l;x5=.5[x10,x11]; x13=x11;
y10-y5=y5-y12;
y12-y10=x11-x10;
y10=y11;
y12=y13;
draw z10..z13;
draw z12..z11;
penlabels(range 1 thru 13); endchar;

cmchar "\textstyle landup up integral sign";
beginchar(48,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw halfcircle scaled .5w shifted z5;  % contour
y10=y11=y12=y13=y5;
x11+.25w=x12-.25w=x5;
x10+1.5u=x11;
x13-1.5u=x12;
draw z10--z11;
draw z12--z13;
penlabels(range 1 thru 13); endchar;

cmchar "\textstyle landdown up integral sign";
beginchar(50,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib; autorounded;
draw halfcircle scaled .5w rotated 180 shifted z5;  % contour
y10=y11=y12=y13=y5;
x11+.25w=x12-.25w=x5;
x10+1.5u=x11;
x13-1.5u=x12;
draw z10--z11;
draw z12--z13;
penlabels(range 1 thru 13); endchar;

cmchar "\textstyle larhk up integral sign";
beginchar(52,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-.6ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
x51=0; y51=y5;
pos51(1.35rule_thickness,0);pos52(1.2vair,45);pos53(1.2vair,135);
y52=y51+.165w;
y53=y51-.165w;
x52=x51+.16w;
x53=x51+.16w;
x54=w-2u; y54=y5;
x55=w-u; y55=y5-u;
x56=x54; y56=y55-u;
pickup fine.nib;
filldraw z52l--z51l--z51r--z52r--cycle;
filldraw z53r--z51r--z51l--z53l--cycle;
pickup rule.nib; autorounded;
draw z51--z54{right}..{down}z55{down}..{left}z56;
penlabels(range 1 thru 56); endchar;

cmchar "\textstyle up up integral sign";
beginchar(54,10u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib;
y10=y11=y3+u;
x10=x8; x11=x2;
draw z10..z11;
penlabels(range 1 thru 11); endchar;

cmchar "\textstyle down up integral sign";
beginchar(56,10u#,0,100/54dh#);
italcorr 0; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
rt x1r=hround(w-u); x9=w-x1; x7=w-x3=3u;
x5=x4=x6; lft x5r=hround(.5w-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
filldraw stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
filldraw stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
pickup rule.nib;
y10=y11=y7-u;
x10=x8; x11=x2;
draw z10..z11;
penlabels(range 1 thru 11); endchar;

cmchar "\textstyle dots up integral sign";
beginchar(58,10u#+3tdec#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,-ic#); pickup fine.nib;
path haut;
path bas;
path rond;
x0=tdec;y0=0;
pos1(curve,0); pos2(hair,0); pos3(vair,90); pos4(curve,180);
pos31(curve,0); pos32(hair,0); pos33(vair,90);
pos5(curve,180); pos5'(curve,0); z5'=z5; pos6(curve,0);
pos7(vair,-90); pos8(hair,-180); pos9(curve,-180);
pos37(vair,-90); pos38(hair,-180); pos39(curve,-180);
rt x1r=hround(w-3tdec-u); x9=w-3tdec-x1; x7=w-3tdec-x3=3u;
x39=x9+3tdec;x37=x7+3tdec;
y39=y9;y38=y8;y37=y7;
x31=x1+3tdec;x33=x3+3tdec;
y31=y1;y33=y3;
x5=x4=x6; lft x5r=hround(.5w-1.5tdec-.5curve);
top y3r=0; bot y7r=-d; y9-.5curve=vround(top y7l+.25curve);
y3-y1=y9-y7; y5=.5[y3,y7]=.5[y4,y6]; y4-y6=.6(y3-y7);
bulb(3,2,1); bulb(7,8,9);  % bulbs
bulb(33,32,31); bulb(37,38,39);
haut:=stroke z3e{left}...z4e{(z5e-z4e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z5-z4}z5e;  % upper curve
bas:=stroke z5'e{z6-z5}..tension atleast.8 and atleast 1
 ..{(z6e-z5'e)xscaled 1.1}z6e...{left}z7e;  % lower curve
filldraw haut;
filldraw bas;
filldraw haut shifted 3z0;
filldraw bas shifted 3z0;
pickup fine.nib;
numeric dot_diam#; dot_diam#=dot_size#;
define_whole_blacker_pixels(dot_diam);
pos51(dot_diam,0);pos52(dot_diam,90);
lft x51l=hround(.5w-.5dot_diam);
y52=y5;
z51=z52;
rond:=z51l..z52l..z51r..z52r..cycle;
filldraw rond shifted -.75z0;
filldraw rond;
filldraw rond shifted .75z0;
penlabels(range 1 thru 39); endchar;



cmchar "\textstyle integral summation sign";
beginchar(60,10u#+4u#,0,100/54dh#); %10/6dh = 90/54
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,0); pickup tiny.nib;
numeric top_arm_thickness, bot_arm_thickness;
numeric sumup, sumdown;
sumup=-.2d; sumdown=-d-sumup;
top_arm_thickness=Vround rule_thickness;
bot_arm_thickness=Vround .9(.5[rule_thickness,curve]);
lft x1l=hround u; x1l=x2l=x4l; x3l-x1l=4/11(w-2u);
top y1=sumup; bot y2=sumup-top_arm_thickness-eps; bot y4=sumdown; y3=(sumdown+sumup)/2;% y3=-.5d;
numeric alpha[]; alpha1=((x3l-x1l)++(y2-y3))/(y2-y3);
penpos1(alpha1*(curve-tiny),0); penpos2(alpha1*(curve-tiny),0);
penpos3(alpha1*(curve-tiny),0);
alpha2=diag_ratio(1,rule_thickness-tiny,y3-y4,x3r-x4l);
penpos4(alpha2*(rule_thickness-tiny),0);
z0=whatever[z2l,z3l]=z4l+whatever*(z3r-z4r);
filldraw z1l--z2l--z0--z4l--z4r--z3r--z2r--z1r--cycle;  % diagonals
pickup crisp.nib; pos5(top_arm_thickness,90); pos6(hair,0);
top y5r=sumup; x5=x1; rt x6r=hround(w-u); y6=good.y(y5l-.7beak)-eps;
arm(5,6,a,.45,12/11u);  % upper arm and beak
pos7(bot_arm_thickness,-90); pos8(hair,0);
bot y7r=sumdown; z7l=whatever[z4,z3]; x7r:=x4; x8=x6; y8=good.y(y7l+.7beak)+eps;
arm(7,8,b,.45,12/11u);  % lower arm and beak
pickup fine.nib;
numeric intoff;
intoff=2u;
pos11(curve,0); pos12(hair,0); pos13(vair,90); pos14(curve,180);
pos15(curve,180); pos15'(curve,0); z15'=z15; pos16(curve,0);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
rt x11r=hround(w-intoff-u); x19=w-x11; x17=w-x13=3u+intoff;
x15=x14=x16; lft x15r=hround(.5w-.5curve);
top y13r=0; bot y17r=-d; y19-.5curve=vround(top y17l+.25curve);
y13-y11=y19-y17; y15=.5[y13,y17]=.5[y14,y16]; y14-y16=.6(y13-y17);
bulb(13,12,11); bulb(17,18,19);  % bulbs
filldraw stroke z13e{left}...z14e{(z15e-z14e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z15-z14}z15e;  % upper curve
filldraw stroke z15'e{z16-z15}..tension atleast.8 and atleast 1
 ..{(z16e-z15'e)xscaled 1.1}z16e...{left}z17e;  % lower curve
penlabels(range 1 thru 19); endchar;

cmchar "\textstyle integral union sign";
beginchar(62,10u#+2u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,0); pickup pencircle scaled stem;
numeric sumup, sumdown;
sumup=-.2d; sumdown=-d-sumup;
lft x1=hround u; x2=x1; x3=w-x3; x4=x5=w-x1;
top y1=eps+sumup; bot y3=sumdown; y2=y4=2/3[y1,y3]; y5=y1;
draw z1---z2...z3...z4---z5;  % stems and cup
pickup fine.nib;
numeric intoff;
intoff=1.0u;
pos11(curve,0); pos12(hair,0); pos13(vair,90); pos14(curve,180);
pos15(curve,180); pos15'(curve,0); z15'=z15; pos16(curve,0);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
rt x11r=hround(w-intoff-u); x19=w-x11; x17=w-x13=3u+intoff;
x15=x14=x16; lft x15r=hround(.5w-.5curve);
top y13r=0; bot y17r=-d; y19-.5curve=vround(top y17l+.25curve);
y13-y11=y19-y17; y15=.5[y13,y17]=.5[y14,y16]; y14-y16=.6(y13-y17);
bulb(13,12,11); bulb(17,18,19);  % bulbs
filldraw stroke z13e{left}...z14e{(z15e-z14e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z15-z14}z15e;  % upper curve
filldraw stroke z15'e{z16-z15}..tension atleast.8 and atleast 1
 ..{(z16e-z15'e)xscaled 1.1}z16e...{left}z17e;  % lower curve
penlabels(range 1 thru 19); endchar;

cmchar "\textstyle integral intersection sign";
beginchar(64,10u#+2u#,0,100/54dh#);
italcorr 2u#; % \TeX\ kerning between upper limit and lower limit
adjust_fit(0,0); pickup pencircle scaled stem;
numeric sumup, sumdown;
sumup=-.2d; sumdown=-d-sumup;
lft x1=hround u; x2=x1; x3=w-x3; x4=x5=w-x1;
top y3=sumup; bot y1=sumdown-eps; y2=y4=2/3[y1,y3]; y5=y1;
draw z1---z2...z3...z4---z5;  % stems and cap
pickup fine.nib;
numeric intoff;
intoff=1.0u;
pos11(curve,0); pos12(hair,0); pos13(vair,90); pos14(curve,180);
pos15(curve,180); pos15'(curve,0); z15'=z15; pos16(curve,0);
pos17(vair,-90); pos18(hair,-180); pos19(curve,-180);
rt x11r=hround(w-intoff-u); x19=w-x11; x17=w-x13=3u+intoff;
x15=x14=x16; lft x15r=hround(.5w-.5curve);
top y13r=0; bot y17r=-d; y19-.5curve=vround(top y17l+.25curve);
y13-y11=y19-y17; y15=.5[y13,y17]=.5[y14,y16]; y14-y16=.6(y13-y17);
bulb(13,12,11); bulb(17,18,19);  % bulbs
filldraw stroke z13e{left}...z14e{(z15e-z14e)xscaled 1.1}
 ..tension atleast 1 and atleast .8..{z15-z14}z15e;  % upper curve
filldraw stroke z15'e{z16-z15}..tension atleast.8 and atleast 1
 ..{(z16e-z15'e)xscaled 1.1}z16e...{left}z17e;  % lower curve
penlabels(range 1 thru 19); endchar;