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HTML 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

字符 实体编号 实体名称 描述
∀ ∀ ∀ for all
∂ ∂ ∂ part
∃ ∃ ∃ exists
∅ ∅ ∅ empty
∇ ∇ ∇ nabla
∈ ∈ ∈ isin
∉ ∉ ∉ notin
∋ ∋ ∋ ni
∏ ∏ ∏ prod
∑ ∑ ∑ sum
− − − minus
∗ ∗ ∗ lowast
√ √ √ square root
∝ ∝ ∝ proportional to
∞ ∞ ∞ infinity
∠ ∠ ∠ angle
∧ ∧ ∧ and
∨ ∨ ∨ or
∩ ∩ ∩ cap
∪ ∪ ∪ cup
∫ ∫ ∫ integral
∴ ∴ ∴ therefore
∼ ∼ ∼ similar to
≅ ≅ ≅ congruent to
≈ ≈ ≈ 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
⊗ ⊗ ⊗ circled times
⊥ ⊥ ⊥ perpendicular
⋅ ⋅ ⋅ dot operator

HTML 支持的希腊字母

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

HTML 支持的其他实体

字符 实体编号 实体名称 描述
ΠΠΠcapital ligature OE
œ œ œ small ligature oe
Š Š Š capital S with caron
š š š small S with caron
Ÿ Ÿ Ÿ capital Y with diaeres
ƒ ƒ ƒ f with hook
ˆ ˆ ˆ modifier letter circumflex accent
˜ ˜ ˜ 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
™ ™ or ™ ™ 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