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\begin{tabbing}
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{\bf Accents}\\
\`o\>{\verb.\`{o}.}\>\~o\>{\verb.\~{o}.}\>\v{o}\>{\verb.\v{o}.}\>
						\c{o}\>{\verb.\c{o}.}\\
\'o\>{\verb.\'{o}.}\>\H{o}\>{\verb.\H{o}.}\>\d{o}\>{\verb.\d{o}.}\>
							 \>{\verb.\={o}.}\\
\^o\>{\verb.\^{o}.}\>\.o\>{\verb,\.{o},}\>\t{oo}\>{\verb.\t{oo}.}\>
						\b{o}\>{\verb.\b{o}.}\\
\"o\>{\verb.\"{o}.}\>\u{o}\>{\verb.\u{o}.}\\
\\
{\bf Dotless i and j}\\
\i\>{\verb.\i.}\>\j\>{\verb.\j.}\\
\\
{\bf Symbols}\\ 
\dag\>{\verb.\dag.}\>\S\>{\verb.\S.}\>\copyright\>{\verb.\copyright.}\\
\ddag\>{\verb.\ddag.}\>\P\>{\verb.\P.}\>\pounds\>{\verb.\pounds.}\\
\\
\oe\>{\verb.\oe.}\>\aa\>{\verb.\aa.}\>\l\>{\verb.\l.}\>?`\>{\verb.?`.}\\
\OE\>{\verb.\OE.}\>\AA\>{\verb.\AA.}\>\L\>{\verb.\L.}\>!`\>{\verb.!`.}\\
\ae\>{\verb.\ae.}\>\o\>{\verb.\o.}\>\ss\>{\verb.\ss.}\\
\AE\>{\verb.\AE.}\>\O\>{\verb.\O.}\\
\\
{\bf Mathematical Symbols}\\
\>{\sf Greek Letters}\\
$\alpha$\>{\verb.\alpha.}\>$\theta$\>{\verb.\theta.}\>
	$o$\>{\verb.o.}\>$\tau$\>{\verb.\tau.}\\
$\beta$\>{\verb.\beta.}\>$\vartheta$\>{\verb.\vartheta.}\>
	$\pi$\>{\verb.\pi.}\>$\upsilon$\>{\verb.\upsilon.}\\
$\gamma$\>{\verb.\gamma.}\>$\iota$\>{\verb.\iota.}\>
	$\varpi$\>{\verb.\varpi.}\>$\phi$\>{\verb.\phi.}\\
$\delta$\>{\verb.\delta.}\>$\kappa$\>{\verb.\kappa.}\>
	$\rho$\>{\verb.\rho.}\>$\varphi$\>{\verb.\varphi.}\\
$\epsilon$\>{\verb.\epsilon.}\>$\lambda$\>{\verb.\lambda.}\>
	$\varrho$\>{\verb.\varrho.}\>$\chi$\>{\verb.\chi.}\\
$\varepsilon$\>{\verb.\varepsilon.}\>$\mu$\>{\verb.\mu.}\>
	$\sigma$\>{\verb.\sigma.}\>$\psi$\>{\verb.\psi.}\\
$\zeta$\>{\verb.\zeta.}\>$\nu$\>{\verb.\nu.}\>
	$\varsigma$\>{\verb.\varsigma.}\>$\omega$\>{\verb.\omega.}\\
$\eta$\>{\verb.\eta.}\>$\xi$\>{\verb.\xi.}\\
\\
$\Gamma$\>{\verb.\Gamma.}\>$\Lambda$\>{\verb.\Lambda.}\>
	$\Sigma$\>{\verb.\Sigma.}\>$\Psi$\>{\verb.\Psi.}\\
$\Delta$\>{\verb.\Delta.}\>$\Xi$\>{\verb.\Xi.}\>
	$\Upsilon$\>{\verb.\Upsilon.}\>$\Omega$\>{\verb.\Omega.}\\
$\Theta$\>{\verb.\Theta.}\>$\Pi$\>{\verb.\Pi.}\>$\Phi$\>{\verb.\Phi.}\\
\\
\>{\sf Binary Operation Symbols}\\
$\pm$\>{\verb.\pm.}\>$\cap$\>{\verb.\cap.}\>
	$\diamond$\>{\verb.\diamond.}\>$\oplus$\>{\verb.\oplus.}\\
$\mp$\>{\verb.\mp.}\>$\cup$\>{\verb.\cup.}\>
	$\bigtriangleup$\>{\verb.\bigtriangleup.}\>
	$\ominus$\>{\verb.\ominus.}\\
$\times$\>{\verb.\times.}\>$\uplus$\>{\verb.\uplus.}\>
	$\bigtriangledown$\>{\verb.\bigtriangledown.}\>
	$\otimes$\>{\verb.\otimes.}\\
$\div$\>{\verb.\div.}\>$\sqcap$\>{\verb.\sqcap.}\>
	$\triangleleft$\>{\verb.\triangleleft.}\>
	$\oslash$\>{\verb.\oslash.}\\
$\ast$\>{\verb.\ast.}\>$\sqcup$\>{\verb.\sqcup.}\>
	$\triangleright$\>{\verb.\triangleright.}\>
	$\odot$\>{\verb.\odot.}\\
$\star$\>{\verb.\star.}\>$\vee$\>{\verb.\vee.}\>
	$\lhd$\>{\verb.\lhd.}\>$\bigcirc$\>{\verb.\bigcirc.}\\
$\circ$\>{\verb.\circ.}\>$\wedge$\>{\verb.\wedge.}\>
	$\rhd$\>{\verb.\rhd.}\>$\dagger$\>{\verb.\dagger.}\\
$\bullet$\>{\verb.\bullet.}\>$\setminus$\>{\verb.\setminus.}\>
	$\unlhd$\>{\verb.\unlhd.}\>
	$\ddagger$\>{\verb.\ddagger.}\\
$\cdot$\>{\verb.\cdot.}\>$\wr$\>{\verb.\wr.}\>
	$\unrhd$\>{\verb.\unrhd.}\>$\amalg$\>{\verb.\amalg.}\\
\\
\>{\sf Relation Symbols}\\
$\leq$\>{\verb.\leq.}\>$\geq$\>{\verb.\geq.}\>
	$\equiv$\>{\verb.\equiv.}\>$\models$\>{\verb.\models.}\\
$\prec$\>{\verb.\prec.}\>$\succ$\>{\verb.\succ.}\>
	$\sim$\>{\verb.\sim.}\>$\perp$\>{\verb.\perp.}\\
$\preceq$\>{\verb.\preceq.}\>$\succeq$\>{\verb.\succeq.}\>
	$\simeq$\>{\verb.\simeq.}\>$\mid$\>{\verb.\mid.}\\
$\ll$\>{\verb.\ll.}\>$\gg$\>{\verb.\gg.}\>
	$\asymp$\>{\verb.\asymp.}\>
	$\parallel$\>{\verb.\parallel.}\\
$\subset$\>{\verb.\subset.}\>$\supset$\>{\verb.\supset.}\>
	$\approx$\>{\verb.\approx.}\>
	$\bowtie$\>{\verb.\bowtie.}\\
$\subseteq$\>{\verb.\subseteq.}\>
	$\supseteq$\>{\verb.\supseteq.}\>
	$\cong$\>{\verb.\cong.}\>$\Join$\>{\verb.\Join.}\\
$\sqsubset$\>{\verb.\sqsubset.}\>
	$\sqsupset$\>{\verb.\sqsupset.}\>
	$\neq$\>{\verb.\neq.}\>$\smile$\>{\verb.\smile.}\\
$\sqsubseteq$\>{\verb.\sqsubseteq.}\>
	$\sqsupseteq$\>{\verb.\sqsupseteq.}\>
	$\doteq$\>{\verb.\doteq.}\>
	$\frown$\>{\verb.\frown.}\\
$\in$\>{\verb.\in.}\>$\ni$\>{\verb.\ni.}\>
	$\vdash$\>{\verb.\vdash.}\>$\dashv$\>{\verb.\dashv.}\\
$\propto$\>{\verb.\propto.}\\
\\
\>{\sf Miscellaneous Symbols}\\
$\aleph$\>{\verb.\aleph.}\>$\prime$\>{\verb.\prime.}\>
	$\forall$\>{\verb.\forall.}\>
	$\infty$\>{\verb.\infty.}\\
$\hbar$\>{\verb.\hbar.}\>$\emptyset$\>{\verb.\emptyset.}\>
	$\exists$\>{\verb.\exists.}\>$\Box$\>{\verb.\Box.}\\
$\imath$\>{\verb.\imath.}\>$\nabla$\>{\verb.\nabla.}\>
	$\neg$\>{\verb.\neg.}\>$\Diamond$\>{\verb.\Diamond.}\\
$\jmath$\>{\verb.\jmath.}\>$\surd$\>{\verb.\surd.}\>
	$\flat$\>{\verb.\flat.}\>
	$\triangle$\>{\verb.\triangle.}\\
$\ell$\>{\verb.\ell.}\>$\top$\>{\verb.\top.}\>
	$\natural$\>{\verb.\natural.}\>
	$\clubsuit$\>{\verb.\clubsuit.}\\
$\wp$\>{\verb.\wp.}\>$\bot$\>{\verb.\bot.}\>
	$\sharp$\>{\verb.\sharp.}\>
	$\diamondsuit$\>{\verb.\diamondsuit.}\\
$\Re$\>{\verb.\Re.}\>$\|$\>{\verb.\|.}\>
	$\backslash$\>{\verb.\backslash.}\>
	$\heartsuit$\>{\verb.\heartsuit.}\\
$\Im$\>{\verb.\Im.}\>$\angle$\>{\verb.\angle.}\>
	$\partial$\>{\verb.\partial.}\>
	$\spadesuit$\>{\verb.\spadesuit.}\\
$\mho$\>{\verb.\mho.}\\
\\
\\
\\
\\
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\>{\sf Arrow Symbols}\\
$\leftarrow$\>{\verb.\leftarrow.}\>
	$\longleftarrow$\>{\verb.\longleftarrow.}\>
	$\uparrow$\>{\verb.\uparrow.}\\
$\Leftarrow$\>{\verb.\Leftarrow.}\>
	$\Longleftarrow$\>{\verb.\Longleftarrow.}\>
	$\Uparrow$\>{\verb.\Uparrow.}\\
$\rightarrow$\>{\verb.\rightarrow.}\>
	$\longrightarrow$\>{\verb.\longrightarrow.}\>
	$\downarrow$\>{\verb.\downarrow.}\\
$\Rightarrow$\>{\verb.\Rightarrow.}\>
	$\Longrightarrow$\>{\verb.\Longrightarrow.}\>
	$\Downarrow$\>{\verb.\Downarrow.}\\
$\leftrightarrow$\>{\verb.\leftrightarrow.}\>
	$\longleftrightarrow$\>{\verb.\longleftrightarrow.}\>
	$\updownarrow$\>{\verb.\updownarrow.}\\
$\Leftrightarrow$\>{\verb.\Leftrightarrow.}\>
	$\Longleftrightarrow$\>{\verb.\Longleftrightarrow.}\>
	$\Updownarrow$\>{\verb.\Updownarrow.}\\
$\mapsto$\>{\verb.\mapsto.}\>
	$\longmapsto$\>{\verb.\longmapsto.}\>
	$\nearrow$\>{\verb.\nearrow.}\\
$\hookleftarrow$\>{\verb.\hookleftarrow.}\>
	$\hookrightarrow$\>{\verb.\hookrightarrow.}\>
	$\searrow$\>{\verb.\searrow.}\\
$\leftharpoonup$\>{\verb.\leftharpoonup.}\>
	$\rightharpoonup$\>{\verb.\rightharpoonup.}\>
	$\swarrow$\>{\verb.\swarrow.}\\
$\leftharpoondown$\>{\verb.\leftharpoondown.}\>
	$\rightharpoondown$\>{\verb.\rightharpoondown.}\>
	$\nwarrow$\>{\verb.\nwarrow.}\\
$\rightleftharpoons$\>{\verb.\rightleftharpoons.}\>
	$\leadsto$\>{\verb.\leadsto.}\\
\\
\\
\\
\\
\\
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\>{\sf Variable sized symbols}\\
$\sum$\>$\displaystyle\sum$\>{\verb.\sum.}\>
	$\bigcap$\>$\displaystyle\bigcap$\>{\verb.\bigcap.}\>
	$\bigodot$\>$\displaystyle\bigodot$\>{\verb.\bigodot.}\\
$\prod$\>$\displaystyle\prod$\>{\verb.\prod.}\>
	$\bigcup$\>$\displaystyle\bigcup$\>{\verb.\bigcup.}\>
	$\bigotimes$\>$\displaystyle\bigotimes$\>{\verb.\bigotimes.}\\
$\coprod$\>$\displaystyle\coprod$\>{\verb.\coprod.}\>
	$\bigsqcup$\>$\displaystyle\bigsqcup$\>{\verb.\bigsqcup.}\>
	$\bigoplus$\>$\displaystyle\bigoplus$\>{\verb.\bigoplus.}\\
$\int$\>$\displaystyle\int$\>{\verb.\int.}\>
	$\bigvee$\>$\displaystyle\bigvee$\>{\verb.\bigvee.}\>
	$\biguplus$\>$\displaystyle\biguplus$\>{\verb.\biguplus.}\\
$\oint$\>$\displaystyle\oint$\>{\verb.\oint.}\>
	$\bigwedge$\>$\displaystyle\bigwedge$\>{\verb.\bigwedge.}\\
\\
\\
\>{\sf Log-like Functions}\\
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{\verb.\arccos.}\>{\verb.\cos.}\>{\verb.\csc.}\>
	{\verb.\exp.}\>{\verb.\ker.}\>
	{\verb.\limsup.}\>{\verb.\min.}\>
	{\verb.\sinh.}\\
{\verb.\arcsin.}\>{\verb.\cosh.}\>{\verb.\deg.}\>
	{\verb.\gcd.}\>{\verb.\lg.}\>
	{\verb.\ln.}\>{\verb.\Pr.}\>
	{\verb.\sup.}\\
{\verb.\arctan.}\>{\verb.\cot.}\>{\verb.\det.}\>
	{\verb.\hom.}\>{\verb.\lim.}\>
	{\verb.\log.}\>{\verb.\sec.}\>
	{\verb.\tan.}\\
{\verb.\arg.}\>{\verb.\coth.}\>{\verb.\dim.}\>
	{\verb.\inf.}\>{\verb.\liminf.}\>
	{\verb.\max.}\>{\verb.\sin.}\>
	{\verb.\tanh.}\\
\\
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$\lfloor$\>{\verb.\lfloor.}\>$\rfloor$\>{\verb.\rfloor.}\>
	$\lceil$\>{\verb.\lceil.}\>$\rceil$\>{\verb.\rceil.}\\
\\
$\hat{a}$\>{\verb.\hat{a}.}\>$\acute{a}$\>{\verb.\acute{a}.}\>
	$\bar{a}$\>{\verb.\bar{a}.}\>$\dot{a}$\>{\verb.\dot{a}.}\\
$\check{a}$\>{\verb.\check{a}.}\>$\grave{a}$\>{\verb.\grave{a}.}\>
	$\vec{a}$\>{\verb.\vec{a}.}\>$\ddot{a}$\>{\verb.\ddot{a}.}\\
$\breve{a}$\>{\verb.\breve{a}.}\>$\tilde{a}$\>{\verb.\tilde{a}.}\\
\\
\\
\end{tabbing}
\newpage

{\bf Examples}
\begin{enumerate}
\item
$\begin{array}{lr}
\hbox{\verb.\widehat x,\widetilde x.} & \widehat x,\widetilde x\\
\hbox{\verb.\widehat{xy},\widetilde{xy}.} & \widehat{xy},\widetilde{xy}\\
\hbox{\verb.\widehat{xyz},\widetilde{xyz}.} & \widehat{xyz},\widehat{xyz}
\end{array}$

\item
\[\displaystyle a_0+{1\over\displaystyle a_1+
	{\strut 1\over\displaystyle a_2+
	  {\strut 1\over\displaystyle a_3+
	    {\strut 1\over a_4}}}}\]
{\verb.a_0+{1\over\displaystyle a_1+{\strut 1\over\displaystyle a_2+.}\\
{\verb.      {\strut 1\over\displaystyle a_3+{\strut 1\over a_4}}}}.}

\item
\[\bar\Phi\subset NL_1^*/N=\bar L_1^*\subseteq\cdots\subseteq NL_n^*/N=
								\bar L_n^*\]
{\verb.\bar\Phi\subset NL_1^*/N=\bar L_1^*.}\\
{\verb.                \subseteq\cdots\subseteq NL_n^*/N=\bar L_n^*.}

\item
\[I(\lambda)=\int\!\!\int_Dg(x,y)e^{i\lambda h(x,y)}\,dx\,dy\]
{\verb.I(\lambda)=\int\!\!\int_Dg(x,y)e^{i\lambda h(x,y)}\,dx\,dy.}

\item
\[\int_0^1\!\cdots\int_0^1f(x_1,\ldots,x_n)\,dx_1,\ldots\,dx_n\]
{\verb.\int_0^1\!\cdots\int_0^1f(x_1,\ldots,x_n)\,dx_1,\ldots\,dx_n.}

\item
\[x_{2m}\equiv\cases{Q(X_m^2-P_2W_m^2)-2S^2&($m$ odd)\cr
	\noalign{\vskip3pt}
	P_2^2(X_m^2-P_2W_m^2)-2S^2&($m$ even)\cr}\pmod N\]
{\verb.x_{2m}\equiv\cases{Q(X_m^2-P_2W_m^2)-2S^2&($m$ odd)\cr.}\\
{\verb.      \noalign{\vskip3pt}.}\\
{\verb.      P_2^2(X_m^2-P_2W_m^2)-2S^2&($m$ even)\cr}\pmod N.}

\item
\[\prod_{j\ge0}\left(\sum_{k\ge0}a_{jk}z^k\right)
	=\sum_{n\ge0}z^n\,\left(\sum_{
		\scriptstyle k_0,k_1,\ldots\ge0\atop
		\scriptstyle k_0+k_1+\cdots=n}
	a_{0k_0}a_{1k_1}\ldots\,\right)\]
{\verb.\prod_{j\ge0}\left(\sum_{k\ge0}a_{jk}z^k\right).}\\
{\verb.     =\sum_{n\ge0}z^n\,\left(\sum_{.}\\
{\verb.           \scriptstyle k_0,k_1,\ldots\ge0\atop.}\\
{\verb.           \scriptstyle k_0+k_1+\cdots=n}.}\\
{\verb.     a_{0k_0}a_{1k_1}\ldots\,\right).}

\item
\[{(n_1+n_2+\cdots+n_m)!\over n_1!\,n_2!\ldots n_m!}
	={n_1+n_2\choose n_2}{n_1+n_2+n_3\choose n_3}
		\ldots{n_1+n_2+\cdots+n_m\choose n_m}\]
{\verb.{(n_1+n_2+\cdots+n_m)!\over n_1!\,n_2!\ldots n_m!}.}\\
{\verb.      ={n_1+n_2\choose n_2}{n_1+n_2+n_3\choose n_3}.}\\
{\verb.               \ldots{n_1+n_2+\cdots+n_m\choose n_m}.}

\item
\[\def\foo#1#2{(1-q^{#1_#2+n})}
\Pi_R{a_1,a_2,\ldots,a_M\atopwithdelims[]b_1,b_2,\ldots,b_N}
  =\prod_{n=0}^R{\foo a1\foo a2\ldots\foo aM\over\foo b1\foo b2\ldots\foo bN}\]
{\verb.\def\foo#1#2{(1-q^{#1_#2+n})}.}\\
{\verb.\Pi_R{a_1,a_2,\ldots,a_M\atopwithdelims[]b_1,b_2,\ldots,b_N}.}\\
{\verb.=\prod_{n=0}^R{\foo a1\foo a2\ldots\foo aM\over\foo b1\foo b2\ldots\foo bN}.}

\item
\[\{\underbrace{\overbrace{\mathstrut a,\ldots,a}^{k\;a\mathchar`'\rm s},
	\overbrace{\mathstrut b,\ldots,b}^{l\;b\mathchar`'\rm s}
	}_{k+l\rm\; elements}\}\]
{\verb.\{\underbrace{\overbrace{\mathstrut a,\ldots,a}.}\\
{\verb.^{k\;a\mathchar`'\rm s},\overbrace{\mathstrut b,\ldots,b}.}\\
{\verb.^{l\;b\mathchar`'\rm s}}_{k+l\rm\; elements}\}.}

\item
\[\left(\begin{array}{cc}\left(\begin{array}{cc} a&b\\ c&d\end{array}
\right)&\left(\begin{array}{cc} e&f\\ g&h\end{array}\right)\\
\noalign{\smallskip}
0&\left(\begin{array}{cc} i&j\\ k&l\end{array}\right)\end{array}\right)\]
{\verb.\left(\begin{array}{cc}\left(\begin{array}{cc}.}\\
{\verb.a&b\\ c&d\end{array}\right)&\left(\begin{array}{cc}.}\\
{\verb.e&f\\ g&h\end{array}\right)\\ \noalign{\smallskip}.}\\
{\verb.0&\left(\begin{array}{cc} i&j\\ k&l\end{array}\right).}\\
{\verb.\end{array}\right).}

\item
\[\det\left|\begin{array}{lllll}
c_0&c_1&c_2&\ldots&c_n\\
c_1&c_2&c_3&\ldots&c_{n+1}\\
c_2&c_3&c_4&\ldots&c_{n+2}\\
\,\vdots&\,\vdots&\,\vdots&&\,\vdots\\
c_n&c_{n+1}&c_{n+2}&\ldots&c_{2n}
\end{array}\right|>0\]
{\verb.\det\left|\begin{array}{lllll} c_0&c_1&c_2&\ldots&c_n\\.}\\
{\verb.c_1&c_2&c_3&\ldots&c_{n+1}\\ c_2&c_3&c_4&\ldots&c_{n+2}\\.}\\
{\verb.\,\vdots&\,\vdots&\,\vdots&&\,\vdots\\.}\\
{\verb.c_n&c_{n+1}&c_{n+2}&\ldots&c_{2n}\end{array}\right|>0.}

\item
\[\mathop{{\sum}'}_{x\in A}f(x)\mathrel{\mathop=^{\rm def}}
  \sum_{\scriptstyle x\in A\atop\scriptstyle x\ne0}f(x)\]
{\verb.\mathop{{\sum}'}_{x\in A}f(x)\mathrel{\mathop=^{\rm def}}.}\\
{\verb.  \sum_{\scriptstyle x\in A\atop\scriptstyle x\ne0}f(x).}

\item (An incorrect one!)
\[2\uparrow\uparrow k\mathrel{\mathop=^{\rm def}}
	2^{\left.{2^{2^{\cdot^{\cdot^{\cdot^2}}}}}\right\}k}\]
{\verb:2\uparrow\uparrow k\mathrel{\mathop=^{\rm def}}:}\\
{\verb:    2^{\left.{2^{2^{\cdot^{\cdot^{\cdot^2}}}}}\right\}k}:}

\item The previous example should have looked like
\[2\uparrow\uparrow k\mathrel{\mathop=^{\rm def}}
	2^{2^{2^{\cdot^{\cdot^{\cdot^2}}}}}
	\vbox{\hbox{$\Big\}\scriptstyle k$}\kern0pt}\]
\begin{verbatim}
2\uparrow\uparrow k\mathrel{\mathop=^{\rm def}}
	2^{2^{2^{\cdot^{\cdot^{\cdot^2}}}}}
	\vbox{\hbox{$\Big\}\scriptstyle k$}\kern0pt}
\end{verbatim}

\item
\[
\def\mapright#1{\smash{\mathop{\longrightarrow}\limits^{#1}}}
\def\mapdown#1{\Big\downarrow\rlap{$\vcenter{\hbox{$\scriptstyle#1$}}$}}
\begin{array}{ccccccccc}
&&&&&&0\\ \noalign{\medskip}
&&&&&&\mapdown{}\\ \noalign{\medskip}
0&\mapright{}&{\cal O}_C&\mapright\iota&{\cal E}&\mapright\rho&
						{\cal L}&\mapright{}&0\\
\noalign{\medskip}
&&\Big\Vert&&\mapdown\phi&&\mapdown\psi\\ \noalign{\medskip}
0&\mapright{}&{\cal O}_C&\mapright{}&\pi_*{\cal O}_D&\mapright\delta&
					R^1f_*{\cal O}_V(-D)&\mapright{}&0\\
\noalign{\medskip}
&&&&&&\mapdown{\theta_i\otimes\gamma^{-1}}\\ \noalign{\medskip}
&&&&&&\hidewidth R^1f_*\bigl({\cal O}_V(-iM)\bigr)\otimes\gamma^{-1}\hidewidth\\
\noalign{\medskip}
&&&&&&\mapdown{}\\ \noalign{\medskip}
&&&&&&0
\end{array}\]
\begin{verbatim}
\def\mapright#1{\smash{\mathop{\longrightarrow}\limits^{#1}}}
\def\mapdown#1{\Big\downarrow\rlap{$\vcenter{\hbox{$\scriptstyle#1$}}$}}
\begin{array}{ccccccccc}
&&&&&&0\\ \noalign{\medskip}
&&&&&&\mapdown{}\\ \noalign{\medskip}
0&\mapright{}&{\cal O}_C&\mapright\iota&{\cal E}&\mapright\rho&
						{\cal L}&\mapright{}&0\\
\noalign{\medskip}
&&\Big\Vert&&\mapdown\phi&&\mapdown\psi\\ \noalign{\medskip}
0&\mapright{}&{\cal O}_C&\mapright{}&\pi_*{\cal O}_D&\mapright\delta&
					R^1f_*{\cal O}_V(-D)&\mapright{}&0\\
\noalign{\medskip}
&&&&&&\mapdown{\theta_i\otimes\gamma^{-1}}\\ \noalign{\medskip}
&&&&&&\hidewidth R^1f_*\bigl({\cal O}_V(-iM)\bigr)\otimes\gamma^{-1}\hidewidth\\
\noalign{\medskip}
&&&&&&\mapdown{}\\ \noalign{\medskip}
&&&&&&0
\end{array}
\end{verbatim}
\newpage

\item
\[\sum_{n=0}^\infty a_nz^n\qquad\hbox{converges if}\qquad
|z|<\Bigl(\limsup_{n\to\infty}\root n\!\of{|a_n|}\,\Bigr)^{-1}\]
\begin{verbatim}
\sum_{n=0}^\infty a_nz^n\qquad\hbox{converges if}\qquad
|z|<\Bigl(\limsup_{n\to\infty}\root n\!\of{|a_n|}\,\Bigr)^{-1}
\end{verbatim}

\end{enumerate}

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