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。

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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