\begin{array}{ll|l}
\texttt{"normal"} &\texttt{} & ABCDEFGHIJKLMNOPQRSTUVWXYZ\\
\texttt{"blackboard"} &\texttt{\mathbb} &\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"boldface"} &\texttt{\mathbf} &\mathbf{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"typewriter"} &\texttt{\mathtt} &\mathtt{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"roman"} &\texttt{\mathrm} &\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"sans-serif"} &\texttt{\mathsf} &\mathsf{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"calligraphic"}&\texttt{\mathcal} &\mathcal{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"script"} &\texttt{\mathscr} &\mathscr{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\texttt{"fraktur"} &\texttt{\mathfrak}&\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZ}\\
\end{array}
\begin{array}{|lc|}
\hline
\verb+\color{black}{黑色}+ & \color{black}{黑色} \\
\verb+\color{darkgray}{深灰}+ & \color{darkgray}{深灰}\\
\verb+\color{gray}{灰色}+ & \color{gray}{灰色} \\
\verb+\color{silver}{银色}+ & \color{silver}{银色} \\
\verb+\color{lightgray}{浅灰}+&\color{lightgray}{浅灰}\\
\verb+\color{white}{白色}+ & \color{white}{白色} \\
\hline
\verb+\color{brown}{棕色}+ & \color{brown}{棕色} \\
\verb+\color{maroon}{栗色}+ & \color{maroon}{栗色} \\
\verb+\color{red}{红色}+ & \color{red}{红色} \\
\verb+\color{fuchsia}{桃红}+ & \color{fuchsia}{桃红} \\
\verb+\color{magenta}{品红}+ & \color{magenta}{品红} \\
\verb+\color{pink}{粉红}+ & \color{pink}{粉红} \\
\verb+\color{orange}{橙色}+ & \color{orange}{橙色} \\
\verb+\color{yellow}{黄色}+ & \color{yellow}{黄色} \\
\verb+\color{lime}{青柠}+ & \color{lime}{青柠} \\
\verb+\color{olive}{橄榄}+ & \color{olive}{橄榄} \\
\verb+\color{green}{绿色}+ & \color{green}{绿色} \\
\verb+\color{aqua}{水绿}+ & \color{aqua}{水绿} \\
\verb+\color{cyan}{青色}+ & \color{cyan}{青色} \\
\verb+\color{teal}{靛青}+ & \color{teal}{靛青} \\
\verb+\color{blue}{蓝色}+ & \color{blue}{蓝色} \\
\verb+\color{navy}{海蓝}+ & \color{navy}{海蓝} \\
\verb+\color{violet}{罗兰}+ & \color{purple}{罗兰} \\
\verb+\color{purple}{紫色}+ & \color{purple}{紫色} \\
\hline
\end{array}
\begin{array}{|rrrrrrrr|}
\hline
\verb+#000+ & \color{#000}{text} & \verb+#005+ & \color{#005}{text} & \verb+#00A+ & \color{#00A}{text} & \verb+#00F+ & \color{#00F}{text} \\
\verb+#500+ & \color{#500}{text} & \verb+#505+ & \color{#505}{text} & \verb+#50A+ & \color{#50A}{text} & \verb+#50F+ & \color{#50F}{text} \\
\verb+#A00+ & \color{#A00}{text} & \verb+#A05+ & \color{#A05}{text} & \verb+#A0A+ & \color{#A0A}{text} & \verb+#A0F+ & \color{#A0F}{text} \\
\verb+#F00+ & \color{#F00}{text} & \verb+#F05+ & \color{#F05}{text} & \verb+#F0A+ & \color{#F0A}{text} & \verb+#F0F+ & \color{#F0F}{text} \\
\hline
\verb+#080+ & \color{#080}{text} & \verb+#085+ & \color{#085}{text} & \verb+#08A+ & \color{#08A}{text} & \verb+#08F+ & \color{#08F}{text} \\
\verb+#580+ & \color{#580}{text} & \verb+#585+ & \color{#585}{text} & \verb+#58A+ & \color{#58A}{text} & \verb+#58F+ & \color{#58F}{text} \\
\verb+#A80+ & \color{#A80}{text} & \verb+#A85+ & \color{#A85}{text} & \verb+#A8A+ & \color{#A8A}{text} & \verb+#A8F+ & \color{#A8F}{text} \\
\verb+#F80+ & \color{#F80}{text} & \verb+#F85+ & \color{#F85}{text} & \verb+#F8A+ & \color{#F8A}{text} & \verb+#F8F+ & \color{#F8F}{text} \\
\hline
\verb+#0F0+ & \color{#0F0}{text} & \verb+#0F5+ & \color{#0F5}{text} & \verb+#0FA+ & \color{#0FA}{text} & \verb+#0FF+ & \color{#0FF}{text} \\
\verb+#5F0+ & \color{#5F0}{text} & \verb+#5F5+ & \color{#5F5}{text} & \verb+#5FA+ & \color{#5FA}{text} & \verb+#5FF+ & \color{#5FF}{text} \\
\verb+#AF0+ & \color{#AF0}{text} & \verb+#AF5+ & \color{#AF5}{text} & \verb+#AFA+ & \color{#AFA}{text} & \verb+#AFF+ & \color{#AFF}{text} \\
\verb+#FF0+ & \color{#FF0}{text} & \verb+#FF5+ & \color{#FF5}{text} & \verb+#FFA+ & \color{#FFA}{text} & \verb+#FFF+ & \color{#FFF}{text} \\
\hline
\end{array}
x = a_0 + \cfrac{1^2}{a_1
+ \cfrac{2^2}{a_2
+ \cfrac{3^2}{a_3
+ \cfrac{4^4}{a_4 + \cdots}}}}
\underset{j=1}{\overset{\infty}{\LARGE\mathrm K}}\frac{a_j}{b_j}
=\cfrac{a_1}{b_1
+\cfrac{a_2}{b_2
+\cfrac{a_3}{b_3
+\ddots}}}
x = a_0 + \frac{1^2}{a_1+}
\frac{2^2}{a_2+}
\frac{3^2}{a_3 +}
\frac{4^4}{a_4 +} \cdots
\begin{array}{ll}
\texttt{\overline}&\overline{AAA}\\
\texttt{\underline}&\underline{BBB}\\
\texttt{\widetilde}&\widetilde{CCC}\\
\texttt{\widehat}&\widehat{DDD}\\
\texttt{\fbox}&\fbox{EEE}\\
\hline
\texttt{\vec}&\vec{x}\ \mathrm{or}\ \vec{AB}\\
\texttt{\check}&\check{x}\\
\texttt{\acute}&\acute{x}\\
\texttt{\grave}&\grave{x}\\
\texttt{\bar}&\bar{x}\\
\texttt{\hat}&\hat{x}\\
\texttt{\tilde}&\tilde{x}\\
\texttt{\mathring}&\mathring{x}\\
\texttt{\dot}&\dot{x}\\
\texttt{\ddot}&\ddot{x}\\
\texttt{\dddot}&\dddot{x}\\
\end{array}
\begin{array}{lc}
\texttt{smallmatrix}&\bigl(\begin{smallmatrix} a & b \\ c & d \end{smallmatrix}\bigr)\\
\texttt{matrix} &\begin{matrix} 1&2\\3&4\\ \end{matrix} \\
\texttt{pmatrix}&\begin{pmatrix}1&2\\3&4\\ \end{pmatrix}\\
\texttt{bmatrix}&\begin{bmatrix}1&2\\3&4\\ \end{bmatrix}\\
\texttt{Bmatrix}&\begin{Bmatrix}1&2\\3&4\\ \end{Bmatrix}\\
\texttt{vmatrix}&\begin{vmatrix}1&2\\3&4\\ \end{vmatrix}\\
\texttt{Vmatrix}&\begin{Vmatrix}1&2\\3&4\\ \end{Vmatrix}\\
\end{array}
\begin{pmatrix}
1 & a_1 & a_1^2 & \cdots & a_1^n \\
1 & a_2 & a_2^2 & \cdots & a_2^n \\
\vdots & \vdots& \vdots & \ddots & \vdots \\
1 & a_m & a_m^2 & \cdots & a_m^n \\
\end{pmatrix}
\left[
\begin{array}{cc|c}
1&2&3\\
4&5&6\\
\end{array}
\right]
\begin{cases}
%线性方程组加\\[2ex],不然会挤在一起.
a_1x+b_1y+c_1z=\frac{p_1}{q_1} \\[2ex]
a_2x+b_2y+c_2z=\frac{p_2}{q_2} \\[2ex]
a_3x+b_3y+c_3z=\frac{p_3}{q_3}
\end{cases}
%约去符,删除线
\require{cancel}
\require{enclose}
\begin{array}{ll}
\verb|y+\cancel{x}| & y+\cancel{x}\\
\verb|y+\bcancel{x}| & y+\bcancel{x}\\
\verb|y+\xcancel{x}| & y+\xcancel{x}\\
\verb|y+\cancelto{0}{x}| & y+\cancelto{0}{x}\\
\verb+\frac{1\cancel9}{\cancel95} = \frac15+& \frac{1\cancel9}{\cancel95} = \frac15 \\
\verb|\enclose{horizontalstrike}{x+y}| & \enclose{horizontalstrike}{x+y}\\
\verb|\enclose{verticalstrike}{\frac xy}| & \enclose{verticalstrike}{\frac xy}\\
\verb|\enclose{updiagonalstrike}{x+y}| & \enclose{updiagonalstrike}{x+y}\\
\verb|\enclose{downdiagonalstrike}{x+y}| & \enclose{downdiagonalstrike}{x+y}\\
\end{array}
\hat{a} \check{a} \tilde{a} \acute{a}
\grave{a} \dot{a} \ddot{a} \breve{a}
\bar{a} \vec{a} \widehat{A} \widetilde{A}
\alpha | \alpha | \theta | \theta | o | o | \upsilon | \upsilon |
---|---|---|---|---|---|---|---|
β | \beta |
ϑ | \vartheta |
π | \pi |
ϕ | \phi |
γ | \gamma |
ι | \iota |
ϖ | \varpi |
φ | \varphi |
δ | \delta |
κ | \kappa |
ρ | \rho |
χ | \chi |
ϵ | \epsilon |
λ | \lambda |
ϱ | \varrho |
ψ | \psi |
ε | \varepsilon |
μ | \mu |
σ | \sigma |
ω | \omega |
ζ | \zeta |
ν | \nu |
ς | \varsigma |
||
η | \eta |
ξ | \xi |
τ | \tau |
Γ | \Gamma |
Λ | \Lambda |
Σ | \Sigma |
Ψ | \Psi |
---|---|---|---|---|---|---|---|
Δ | \Delta |
Ξ | \Xi |
Υ | \Upsilon |
Ω | \Omega |
Θ | \Theta |
Π | \Pi |
Φ | \Phi |
你可以在下述命令的前面加上\not 来得到其否定形式。