数学符号大全
常用数学符号速查表，包含 Unicode、LaTeX 代码和中文名称，点击即可复制
运算符
+加号+U+002B
−减号-U+2212
×乘号\timesU+00D7
÷除号\divU+00F7
±正负号\pmU+00B1
∓负正号\mpU+2213
√平方根\sqrt{}U+221A
∛立方根\sqrt[3]{}U+221B
∜四次方根\sqrt[4]{}U+221C
·点乘\cdotU+00B7
∗星号运算符\astU+2217
∘复合运算符\circU+2218
∙点运算符\bulletU+2219
∑求和\sumU+2211
∏求积\prodU+220F
∐余积\coprodU+2210
∫积分\intU+222B
∬二重积分\iintU+222C
∭三重积分\iiintU+222D
∮环路积分\ointU+222E
∇梯度/微分算子\nablaU+2207
∂偏微分\partialU+2202
∆增量/拉普拉斯算子\DeltaU+2206
⊕直和/异或\oplusU+2295
⊗直积/张量积\otimesU+2297
⊙点圆运算符\odotU+2299
⊖减圆运算符\ominusU+2296
⊘除圆运算符\oslashU+2298
关系符
=等于=U+003D
≠不等于\neqU+2260
≈约等于\approxU+2248
≉不约等于\napproxU+2249
≡恒等于/同余\equivU+2261
≢不恒等\nequivU+2262
≅全等/同构\congU+2245
∼相似\simU+223C
≁不相似\nsimU+2241
∝正比于\proptoU+221D
<小于<U+003C
>大于>U+003E
≤小于等于\leqU+2264
≥大于等于\geqU+2265
≪远小于\llU+226A
≫远大于\ggU+226B
≺先于\precU+227A
≻后于\succU+227B
≼先于等于\preceqU+227C
≽后于等于\succeqU+227D
≃渐近等于\simeqU+2243
≄不渐近等\nsimeqU+2244
∥平行\parallelU+2225
∦不平行\nparallelU+2226
⊥垂直\perpU+22A5
≍渐近\asympU+224D
希腊字母
α阿尔法\alphaU+03B1
β贝塔\betaU+03B2
γ伽马\gammaU+03B3
δ德尔塔\deltaU+03B4
ε艾普西龙\epsilonU+03B5
ζ泽塔\zetaU+03B6
η伊塔\etaU+03B7
θ西塔\thetaU+03B8
ι约塔\iotaU+03B9
κ卡帕\kappaU+03BA
λ拉姆达\lambdaU+03BB
μ缪\muU+03BC
ν纽\nuU+03BD
ξ克西\xiU+03BE
ο欧米克戎oU+03BF
π派\piU+03C0
ρ柔\rhoU+03C1
σ西格马\sigmaU+03C3
τ陶\tauU+03C4
υ宇普西龙\upsilonU+03C5
φ斐\phiU+03C6
χ希\chiU+03C7
ψ普西\psiU+03C8
ω欧米伽\omegaU+03C9
Γ大写伽马\GammaU+0393
Δ大写德尔塔\DeltaU+0394
Θ大写西塔\ThetaU+0398
Λ大写拉姆达\LambdaU+039B
Ξ大写克西\XiU+039E
Π大写派\PiU+03A0
Σ大写西格马\SigmaU+03A3
Φ大写斐\PhiU+03A6
Ψ大写普西\PsiU+03A8
Ω大写欧米伽\OmegaU+03A9
集合符号
∈属于\inU+2208
∉不属于\notinU+2209
∋包含(元素)\niU+220B
⊂真子集\subsetU+2282
⊃真超集\supsetU+2283
⊄不是子集\nsubsetU+2284
⊆子集\subseteqU+2286
⊇超集\supseteqU+2287
⊈非子集\nsubseteqU+2288
∪并集\cupU+222A
∩交集\capU+2229
∅空集\emptysetU+2205
∖差集\setminusU+2216
ℕ自然数集\mathbb{N}U+2115
ℤ整数集\mathbb{Z}U+2124
ℚ有理数集\mathbb{Q}U+211A
ℝ实数集\mathbb{R}U+211D
ℂ复数集\mathbb{C}U+2102
ℙ素数集\mathbb{P}U+2119
∄不存在\nexistsU+2204
∎证毕/结束\blacksquareU+220E
逻辑符号
∧逻辑与\landU+2227
∨逻辑或\lorU+2228
¬逻辑非\negU+00AC
⊤恒真\topU+22A4
⊢可推导\vdashU+22A2
⊨蕴含/语义蕴含\vDashU+22A8
∴所以\thereforeU+2234
∵因为\becauseU+2235
∀全称量词\forallU+2200
∃存在量词\existsU+2203
⊻异或\veebarU+22BB
微积分与分析
′一阶导数'U+2032
″二阶导数''U+2033
‴三阶导数'''U+2034
∞无穷大\inftyU+221E
∯曲面积分\oiintU+222F
ℜ实部\ReU+211C
ℑ虚部\ImU+2111
ℏ约化普朗克常数\hbarU+210F
ℓ手写体l\ellU+2113
箭头
→右箭头\rightarrowU+2192
←左箭头\leftarrowU+2190
↑上箭头\uparrowU+2191
↓下箭头\downarrowU+2193
↔左右箭头\leftrightarrowU+2194
↕上下箭头\updownarrowU+2195
⇒双线右箭头\RightarrowU+21D2
⇐双线左箭头\LeftarrowU+21D0
⇑双线上箭头\UparrowU+21D1
⇓双线下箭头\DownarrowU+21D3
⇔双线左右箭头\LeftrightarrowU+21D4
↦映射\mapstoU+21A6
↗右上箭头\nearrowU+2197
↘右下箭头\searrowU+2198
↙左下箭头\swarrowU+2199
↖左上箭头\nwarrowU+2196
⇀右半箭头(上)\rightharpoonupU+21C0
⇁右半箭头(下)\rightharpoondownU+21C1
↼左半箭头(上)\leftharpoonupU+21BC
↽左半箭头(下)\leftharpoondownU+21BD
⟶长右箭头\longrightarrowU+27F6
⟵长左箭头\longleftarrowU+27F5
⟹长双线右箭头\LongrightarrowU+27F9
⟸长双线左箭头\LongleftarrowU+27F8
其他符号
°度^\circU+00B0
∠角\angleU+2220
∡测量角\measuredangleU+2221
∟直角\rightangleU+221F
△三角形\triangleU+25B3
□正方形\squareU+25A1
▱平行四边形\parallelogramU+25B1
◯大圆\bigcircU+25EF
⊙圆点\odotU+2299
∣整除\midU+2223
∤不整除\nmidU+2224
⌊左向下取整\lfloorU+230A
⌋右向下取整\rfloorU+230B
⌈左向上取整\lceilU+2308
⌉右向上取整\rceilU+2309
⟨左尖括号\langleU+27E8
⟩右尖括号\rangleU+27E9
‖范数/模\|U+2016
…省略号\dotsU+2026
⋯中线省略号\cdotsU+22EF
⋮竖省略号\vdotsU+22EE
⋱斜省略号\ddotsU+22F1
ℵ阿列夫数\alephU+2135
ℶ贝斯数\bethU+2136
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