HTML 符號實體參考手冊


HTML 符號實體

本字符實體參考手冊包括了數學符號、希臘字符、各種箭頭記號、科技符號以及形狀。

注釋: 實體名稱對大小寫敏感。


HTML 支持的數學符號

字符 實體編號 實體名稱 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 支持的希臘字母

字符 實體編號 實體名稱 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 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 theta symbol
? ϒ ϒ upsilon symbol
? ϖ ϖ pi symbol

HTML 支持的其他實體

字符 實體編號 實體名稱 描述
? ΠΠcapital ligature OE
? œ œ small ligature oe
? Š Š capital S with caron
? š š small S with caron
? Ÿ Ÿ capital Y with diaeres
? ƒ ƒ f with hook
? 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