目录
为美赛做个准备吧，正好把latex一些用法整理一下。
以tex live为准。
字体
罗马字体 mathrm{}
for i in range(97, 123):
print('$\mathrm{{{0}}}$'.format(chr(i)))
$mathrm{*}$
for i in range(65, 91):
print('$\mathrm{{{0}}}$'.format(chr(i)))
$mathrm{*}$
斜体 mathit{}
$mathit{*}$
for i in range(97, 123):
print('$\mathit{{{0}}}$'.format(chr(i)))
for i in range(65, 91):
print('$\mathit{{{0}}}$'.format(chr(i)))
粗体 mathbf{}
$mathbf{*}$
for i in range(97, 123):
print('$\mathbf{{{0}}}$'.format(chr(i)))
for i in range(65, 91):
print('$\mathbf{{{0}}}$'.format(chr(i)))
无衬线-f mathsf{}
$mathsf{*}$
for i in range(97, 123):
print('$\mathsf{{{0}}}$'.format(chr(i)))
for i in range(65, 91):
print('$\mathsf{{{0}}}$'.format(chr(i)))
打字机字体 mathtt{}
$mathtt{*}$
for i in range(97, 123):
print('$\mathtt{{{0}}}$'.format(chr(i)))
for i in range(65, 91):
print('$\mathtt{{{0}}}$'.format(chr(i)))
书法字体 mathcal{}
$mathcal{*}$
for i in range(65, 91):
print('$\mathcal{{{0}}}$'.format(chr(i)))
注:小写字母貌似没有
黑板粗体 mathbb{} usepackage{amssymb}
$mathbb{*}$
for i in range(65, 91):
print('$\mathbb{{{0}}}$'.format(chr(i)))
注: 小写字母貌似没有
德文尖角体 mathfrak{} usepackage{amssymb}
$mathfrak{*}$
for i in range(97, 123):
print('$\mathfrak{{{0}}}$'.format(chr(i)))
for i in range(65, 91):
print('$\mathfrak{{{0}}}$'.format(chr(i)))
花体 mathscr{} usepackage{mathrsfs}
$mathscr{}$
for i in range(65, 91):
print('$\mathscr{{{0}}}$'.format(chr(i)))
注:小写貌似没有
数学符号表（摘自《140分钟学会LaTex》）
数学模式重音符号（头顶上的那玩意）
希腊字母
二元关系
$
otin$
( otin)
二元运算符
“大”运算符
箭头
定界符
大定界符
其他符号(AMS的符号就不贴了)
一些数学公式写法的例子
$mathbf{Var}[(CR)_{ij}] = mathop{sum}limits_{t=1}^{c}mathbf{Var}[X_t]
=mathop{sum}limits_{k=1}^{n}frac{A_{ik}^{2}B_{kj}^{2}}{cp_k}
-frac{1}{c}(AB)_{ij}^2$
(mathbf{Var}[(CR)_{ij}] = mathop{sum}limits_{t=1}^{c}mathbf{Var}[X_t] =mathop{sum}limits_{k=1}^{n}frac{A_{ik}^{2}B_{kj}^{2}}{cp_k} -frac{1}{c}(AB)_{ij}^2)
egin{displaymath}
egin{array}{ll}
min & E[|AB-CR|_F^2]\
s.t. & mathop{sum}limits_{i=1}^{n}p_i = 1
end{array}
end{displaymath}
[ egin{array}{ll}
min & E[|AB-CR|_F^2]\
s.t. & mathop{sum}limits_{i=1}^{n}p_i = 1
end{array}
]
[ #usepackage{amssymb, amsmath}
egin{split}
x_k = & x_{k-1} + gamma_k[A_kx_{k-1}-(x_{k-1}^{ op}A_kx_{k-1})x_{k-1}]\
=& x_{k-1} + gamma_k[Ax_{k-1}-(x_{k-1}^{mathrm{T}}Ax_{k-1})x_{k-1}]\
&+gamma_k[(A_k-A)x_{k-1}-(x_{k-1}^{ op}(A_k-A)x_{k-1})x_{k-1}
end{split}
]
egin{equation} label{eq:1}
frac{mathrm{d}|z|_2^{2}}{mathrm{d}t} = 2zfrac{mathrm{d}z}{mathrm{d}t} = 0
end{equation}
#
ef{eq:1}引用
$underbrace{a+b+cdots+z}_{26}$
(underbrace{a+b+cdots+z}_{26})
egin{displaymath}
mathbf{X} =
left( egin{array}{ccc}
x_{11} & x_{12} & ldots \
x_{21} & x_{22} & ldots \
vdots & vdots & ddots
end{array}
ight)
end{displaymath}
egin{displaymath}
y = left{ egin{array}{ll}
a & extrm{if $d>c$}\
b+x & extrm{in the morning}\
l & extrm{all day long}
end{array}
ight.
end{displaymath}
[y = left{ egin{array}{ll}
a & extrm{if $d>c$}\
b+x & extrm{in the morning}\
l & extrm{all day long}
end{array}
ight.
]
egin{displaymath}
left(egin{array}{c|c}
1 & 2 \
hline
3 & 4
end{array}
ight)
end{displaymath}
[left(egin{array}{c|c}
1 & 2 \
hline
3 & 4
end{array}
ight)
]
egin{displaymath}
{}^{12}_{phantom{1}6} extrm{C}
qquad extrm{versus} qquad
{}^{12}_{6} extrm{C}
end{displaymath}
[{}^{12}_{phantom{1}6} extrm{C}
qquad extrm{versus} qquad
{}^{12}_{6} extrm{C}
]
egin{displaymath}
frac{mathrm{d}f}{mathrm{d} heta}=
mathrm{(cos heta, -sin heta)}
left(egin{array}{cc}
mathrm{x_1^T}\
mathrm{x_2^T}
end{array}
ight)
mathrm{A}
mathrm{(x_1, x_2)}
left(egin{array}{cc}
sin heta\
cos heta
end{array}
ight)
end{displaymath}
