Markdown常见数学符号和运算
1. Greek and Hebrew letters
表达式 |
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表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
表达式 |
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\alpha |
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\kappa |
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\psi |
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\digamma |
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\Delta |
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\Theta |
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\beta |
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\lambda |
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\rho |
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\varepsilon |
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\Gamma |
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\Upsilon |
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\chi |
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\mu |
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\sigma |
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\varkappa |
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\Lambda |
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\Xi |
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\delta |
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\nu |
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\tau |
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\varphi |
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\Omega |
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\aleph |
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\epsilon |
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o |
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\theta |
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\varpi |
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\Phi |
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\beth |
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\eta |
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\omega |
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\upsilon |
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\varrho |
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\Pi |
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\daleth |
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\gamma |
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\phi |
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\xi |
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\varsigma |
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\Psi |
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\gimel |
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\iota |
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\pi |
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\zeta |
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\vartheta |
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\Sigma |
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2. LaTex math constructs
表达式 |
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表达式 |
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表达式 |
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\frac{abc}{xyz} |
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\overline{abc} |
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\overrightarrow{abc} |
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f' |
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\underline{abc} |
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\overleftarrow{abc} |
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\sqrt{abc} |
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\widehat{abc} |
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\overbrace{abc} |
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\sqrt[n]{abc} |
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\widetilde{abc} |
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\underbrace{abc} |
3. Delimiters
表达式 |
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表达式 |
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表达式 |
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表达式 |
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表达式 |
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表达式 |
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$ |
$ |
| |
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\ { |
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\lfloor |
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/ |
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\Uparrow |
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\vert |
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\ } |
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\rfloor |
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\backslash |
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\uparrow |
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\lrcorner |
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\ | |
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\langle |
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\lceil |
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[ |
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\Downarrow |
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\ulcorner |
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\Vert |
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\rangle |
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\rceil |
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] |
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\downarrow |
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\urcorner |
4. Variable-sized symbols(displayed formulae show larger version)
表达式 |
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表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
表达式 |
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\sum |
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\int |
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\biguplus |
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\bigoplus |
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\bigvee |
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\prod |
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\oint |
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\bigcap |
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\bigotimes |
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\bigwedge |
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\coprod |
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\iint |
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\bigcup |
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\bigodot |
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\bigsqcup |
5. Standard Function Names
表达式 |
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表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
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\arccos |
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\arcsin |
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\arctan |
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\arg |
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\cos |
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\cosh |
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\cot |
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\coth |
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\csc |
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\deg |
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\det |
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\dim |
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\exp |
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\gcd |
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\hom |
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\inf |
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\ker |
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\lg |
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\lim |
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\liminf |
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\limsup |
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\ln |
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\log |
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\max |
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\min |
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\Pr |
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\sec |
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\sin |
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\sinh |
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\sup |
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\tan |
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\tanh |
6. Binary Operation/Relation Symbols
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
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\ast |
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\pm |
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\cap |
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\lhd |
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\star |
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\mp |
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\cup |
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\rhd |
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\cdot |
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\amalg |
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\uplus |
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\triangleleft |
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\circ |
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\odot |
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\sqcap |
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\triangleright |
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\bullet |
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\ominus |
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\sqcup |
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\unlhd |
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\bigcirc |
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\oplus |
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\wedge |
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\unrhd |
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\diamond |
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\oslash |
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\vee |
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\bigtriangledown |
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\times |
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\otimes |
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\dagger |
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\bigtriangleup |
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\div |
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\wr |
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\ddagger |
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\setminus |
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\centerdot |
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\Box |
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\barwedge |
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\veebar |
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\circledast |
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\boxplus |
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\curlywedge |
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\curlyvee |
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\circledcirc |
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\boxminus |
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\Cap |
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\Cup |
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\circleddash |
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\boxtimes |
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\bot |
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\top |
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\dotplus |
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\boxdot |
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\intercal |
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\rightthreetimes |
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\divideontimes |
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\square |
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\doublebarwedge |
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\leftthreetimes |
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\equiv |
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\leq |
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\geq |
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\perp |
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\cong |
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\prec |
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\succ |
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\mid |
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\neq |
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\preceq |
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\succeq |
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\parallel |
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\sim |
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\ll |
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\gg |
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\bowtie |
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\simeq |
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\subset |
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\supset |
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\Join |
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\approx |
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\subseteq |
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\supseteq |
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\ltimes |
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\asymp |
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\sqsubset |
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\sqsupset |
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\rtimes |
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\doteq |
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\sqsubseteq |
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\sqsupseteq |
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\smile |
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\propto |
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\dashv |
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\vdash |
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\frown |
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\models |
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\in |
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\ni |
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\notin |
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\approxeq |
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\leqq |
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\geqq |
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\lessgtr |
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\thicksim |
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\leqslant |
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\geqslant |
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\lesseqgtr |
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\backsim |
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\lessapprox |
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\gtrapprox |
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\lesseqqgtr |
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\backsimeq |
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\lll |
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\ggg |
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\gtreqqless |
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\triangleq |
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\lessdot |
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\gtrdot |
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\gtreqless |
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\circeq |
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\lesssim |
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\gtrsim |
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\gtrless |
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\bumpeq |
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\eqslantless |
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\eqslantgtr |
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\backepsilon |
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\Bumpeq |
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\precsim |
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\succsim |
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\between |
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\doteqdot |
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\precapprox |
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\succapprox |
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\pitchfork |
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\thickapprox |
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\Subset |
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\Supset |
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\shortmid |
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\fallingdotseq |
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\subseteqq |
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\supseteqq |
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\smallfrown |
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\risingdotseq |
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\sqsubset |
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\sqsupset |
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\smallsmile |
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\varpropto |
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\preccurlyeq |
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\succcurlyeq |
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\Vdash |
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\therefore |
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\curlyeqprec |
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\curlyeqsucc |
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\vDash |
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\because |
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\blacktriangleleft |
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\blacktriangleright |
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\Vvdash |
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\eqcirc |
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\trianglelefteq |
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\trianglerighteq |
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\shortparallel |
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\neq |
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\vartriangleleft |
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\vartriangleright |
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\nshortparallel |
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\ncong |
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\nleq |
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\ngeq |
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\nsubseteq |
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\nmid |
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\nleqq |
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\ngeqq |
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\nsupseteq |
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\nparallel |
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\nleqslant |
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\ngeqslant |
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\nsubseteqq |
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\nshortmid |
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\nless |
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\ngtr |
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\nsupseteqq |
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\nshortparallel |
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\nprec |
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\nsucc |
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\subsetneq |
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\nsim |
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\npreceq |
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\nsucceq |
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\supsetneq |
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\nVDash |
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\precnapprox |
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\succnapprox |
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\subsetneqq |
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\nvDash |
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\precnsim |
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\succnsim |
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\supsetneqq |
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\nvdash |
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\lnapprox |
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\gnapprox |
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\varsubsetneq |
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\ntriangleleft |
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\lneq |
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\gneq |
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\varsupsetneq |
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\ntrianglelefteq |
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\lneqq |
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\gneqq |
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\varsubsetneqq |
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\ntriangleright |
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\lnsim |
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\gnsim |
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\varsupsetneqq |
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\ntrianglerighteq |
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\lvertneqq |
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\gvertneqq |
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7. Arrow symbols
表达式 |
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表达式 |
代码 |
表达式 |
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\leftarrow\leftarrow |
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\longleftarrow |
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\uparrow |
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\Leftarrow |
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\Longleftarrow |
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\Uparrow |
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\rightarrow |
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\longrightarrow |
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\downarrow |
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\Rightarrow |
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\Longrightarrow |
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\Downarrow |
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\leftrightarrow |
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\longleftrightarrow |
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\updownarrow |
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\Leftrightarrow |
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\Longleftrightarrow |
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\Updownarrow |
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\mapsto |
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\longmapsto |
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\nearrow |
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\hookleftarrow |
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\hookrightarrow |
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\searrow |
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\leftharpoonup |
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\rightharpoonup |
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\swarrow |
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\leftharpoondown |
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\rightharpoondown |
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\nwarrow |
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\rightleftharpoons |
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\leadsto |
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\dashrightarrow |
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\dashleftarrow |
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\leftleftarrows |
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\leftrightarrows |
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\Lleftarrow |
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\twoheadleftarrow |
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\leftarrowtail |
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\looparrowleft |
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\leftrightharpoons |
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\curvearrowleft |
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\circlearrowleft |
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\Lsh |
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\upuparrows |
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\upharpoonleft |
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\downharpoonleft |
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\multimap |
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\leftrightsquigarrow |
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\rightrightarrows |
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\rightleftarrows |
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\rightrightarrows |
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\rightleftarrows |
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\twoheadrightarrow |
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\rightarrowtail |
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\looparrowright |
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\rightleftharpoons |
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\curvearrowright |
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\circlearrowright |
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\Rsh |
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\downdownarrows |
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\upharpoonright |
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\downharpoonright |
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\rightsquigarrow |
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\nleftarrow |
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\nrightarrow |
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\nLeftarrow |
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\nRightarrow |
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\nleftrightarrow |
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\nLeftrightarrow |
8. Miscellaneous symbols
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
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\infty |
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\forall |
𝕜
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\Bbbk |
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\wp |
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\nabla |
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\exists |
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\bigstar |
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\angle |
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\partial |
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\nexists |
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\diagdown |
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\measuredangle |
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\eth |
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\emptyset |
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\diagup |
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\sphericalangle |
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\clubsuit |
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\varnothing |
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\Diamond |
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\complement |
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\diamondsuit |
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\imath |
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\Finv |
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\triangledown |
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\heartsuit |
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\jmath |
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\Game |
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\triangle |
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\spadesuit |
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\ell |
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\hbar |
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\vartriangle |
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\cdots |
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\iiiint |
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\hslash |
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\blacklozenge |
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\vdots |
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\iiint |
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\lozenge |
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\blacksquare |
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\ldots |
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\iint |
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\mho |
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\blacktriangle |
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\ddots |
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\sharp |
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\prime |
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\blacktriangledown |
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\Im |
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\flat |
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\square |
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\backprime |
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\Re |
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\natural |
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\surd |
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\circledS |
9. Math mode accents
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
表达式 |
代码 |
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\acute{a} |
\bar{a} |
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\acute{\acute{A}} |
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\bar{\bar{A}} |
|
\breve{a} |
\check{a} |
|
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\breve{\breve{A}} |
|
ckeck{\check{A}} |
|
\ddot{a} |
\dot{a} |
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\dot{\dot{A}} |
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\dot{\dot{A}} |
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\grave{a} |
\hat{a} |
|
|
\grave{\grave{A}} |
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\hat{\hat{A}} |
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\tilde{a} |
\vec{a} |
|
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\tilde{\tilde{A}} |
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\vec{\vec{A}} |
10. Other Styles(math mode only)
表达式 |
代码 |
|
\mathcal{ABCDEFabcdef012345} |
𝕒
𝕓
𝕔
𝕕
𝕖
𝕗
𝟘
𝟙
𝟚
𝟛
𝟜
𝟝
|
\mathbb{ABCDEFabcdef012345} |
|
\mathfrak{ABCDEFabcdef012345} |
|
\mathsf{ABCDEFabcdef012345} |
|
\mathbf{ABCDEFabcdef012345} |
11. Matrix
$$
\begin{matrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{matrix} \tag{1}
$$
$$
\left(
\begin{matrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{matrix}
\right) \tag{2}
$$
$$
\begin{pmatrix}
1 & a_{1} & a_{1}^{2} & \cdots & a_{1}^{n} \\
1 & a_{2} & a_{2}^{2} & \cdots & a_{2}^{n} \\
\vdots & \vdots & \vdots & \ddots & \vdots \\
1 & a_{m} & a_{m}^{2} & \cdots & a_{m}^{n} \\
\end{pmatrix} \tag{3}
$$
$$
\left\{
\begin{matrix}
1 & 2 & \cdots & 5 \\
6 & 7 & \cdots & 10 \\
\vdots & \vdots & \ddots & \vdots \\
\alpha & \alpha+1 & \cdots & \alpha+4
\end{matrix}
\right\} \tag{4}
$$
$$
\begin{bmatrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{bmatrix} \tag{5}
$$
$$
\begin{vmatrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{vmatrix} \tag{6}
$$
$$
\begin{Vmatrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{Vmatrix} \tag{7}
$$
$$
\begin{array}{|c|c|c|}
\hline 2&9&4 \\
\hline 7&5&3 \\
\hline 6&1&8 \\
\hline
\end{array} \tag{8}
$$
$$
\begin{array}{cc|c}
A & B & F \\
\hline
0 & 0 & 0 \\
0 & 1 & 1 \\
1 & 0 & 1 \\
1 & 1 & 1 \\
\end{array} \tag{9}
$$
$$
\left[\begin{array}{c|cc}
1 & 2 & 3 \\
\hline
4 & 5 & 6 \\
7 & 8 & 9
\end{array}\right] \tag{10}
$$
$$
\begin{aligned}
a &= b + c \\
&= d + e + f
\end{aligned} \tag{11}
$$
$$
\begin{cases}
3x + 5y + z \\
7x - 2y + 4z \\
-6x + 3y + 2z
\end{cases} \tag{12}
$$
$$
f(n) =
\begin{cases}
n/2, & \text{if }n\text{ is even} \\
3n+1, & \text{if }n\text{ is odd}
\end{cases} \tag{13}
$$