HTML 4.01 符号实体

本字符实体参考手册包括了数学符号、希腊字符、各种箭头记号、科技符号以及形状。

注释:实体名称对大小写敏感。

HTML 支持的数学符号

结果 描述 实体名称 实体编号
for all ∀ ∀
part ∂ ∂
exists &exists; ∃
empty ∅ ∅
nabla ∇ ∇
isin ∈ ∈
notin ∉ ∉
ni ∋ ∋
prod ∏ ∏
sum ∑ ∑
minus − −
lowast ∗ ∗
square root √ √
proportional to ∝ ∝
infinity ∞ ∞
angle ∠ ∠
and ∧ ∧
or ∨ ∨
cap ∩ ∩
cup ∪ ∪
integral ∫ ∫
therefore ∴ ∴
simular to ∼ ∼
approximately equal ≅ ≅
almost equal ≈ ≈
not equal ≠ ≠
equivalent ≡ ≡
less or equal ≤ ≤
greater or equal ≥ ≥
subset of ⊂ ⊂
superset of ⊃ ⊃
not subset of ⊄ ⊄
subset or equal ⊆ ⊆
superset or equal ⊇ ⊇
circled plus ⊕ ⊕
cirled times ⊗ ⊗
perpendicular ⊥ ⊥
dot operator ⋅ ⋅

HTML 支持的希腊字母

结果 描述 实体名称 实体编号
Α Alpha Α Α
Β Beta Β Β
Γ Gamma Γ Γ
Δ Delta Δ Δ
Ε Epsilon Ε Ε
Ζ Zeta Ζ Ζ
Η Eta Η Η
Θ Theta Θ Θ
Ι Iota Ι Ι
Κ Kappa Κ Κ
Λ Lambda Λ Λ
Μ Mu Μ Μ
Ν Nu Ν Ν
Ξ Xi Ξ Ξ
Ο Omicron Ο Ο
Π Pi Π Π
Ρ Rho Ρ Ρ
  Sigmaf   undefined
Σ Sigma Σ Σ
Τ Tau Τ Τ
Υ Upsilon Υ Υ
Φ Phi Φ Φ
Χ Chi Χ Χ
Ψ Psi Ψ Ψ
Ω Omega Ω Ω
       
α alpha α α
β beta β β
γ gamma γ γ
δ delta δ δ
ε epsilon ε ε
ζ zeta ζ ζ
η eta η η
θ theta θ θ
ι iota ι ι
κ kappa κ κ
λ lambda λ Λ
μ mu μ μ
ν nu ν Ν
ξ xi ξ ξ
ο omicron ο ο
π pi π π
ρ rho ρ ρ
ς sigmaf ς ς
σ sigma σ σ
τ tau τ τ
υ upsilon υ υ
φ phi φ φ
χ chi χ χ
ψ psi ψ ψ
ω omega ω ω
       
ϑ theta symbol ϑ ϑ
ϒ upsilon symbol ϒ ϒ
ϖ pi symbol ϖ ϖ

HTML 支持的其他实体

结果 描述 实体名称 实体编号
Œ capital ligature OE Œ Œ
œ small ligature oe œ œ
Š capital S with caron Š Š
š small S with caron š š
Ÿ capital Y with diaeres Ÿ Ÿ
ƒ f with hook ƒ ƒ
ˆ modifier letter circumflex accent ˆ ˆ
˜ small tilde ˜ ˜
en space    
em space    
thin space    
zero width non-joiner ‌ ‌
zero width joiner ‍ ‍
left-to-right mark ‎ ‎
right-to-left mark ‏ ‏
en dash – –
em dash — —
left single quotation mark ‘ ‘
right single quotation mark ’ ’
single low-9 quotation mark ‚ ‚
left double quotation mark “ “
right double quotation mark ” ”
double low-9 quotation mark „ „
dagger † †
double dagger ‡ ‡
bullet • •
horizontal ellipsis … …
per mille  ‰ ‰
minutes ′ ′
seconds ″ ″
single left angle quotation ‹ ‹
single right angle quotation › ›
overline ‾ ‾
euro € €
trademark ™ ™
left arrow ← ←
up arrow ↑ ↑
right arrow → →
down arrow ↓ ↓
left right arrow ↔ ↔
carriage return arrow ↵ ↵
left ceiling ⌈ ⌈
right ceiling ⌉ ⌉
left floor ⌊ ⌊
right floor ⌋ ⌋
lozenge ◊ ◊
spade ♠ ♠
club ♣ ♣
heart ♥ ♥
diamond ♦ ♦
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