HTML 符号
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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 | 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 支持的其他实体
字符 | 实体编号 | 实体名称 | 描述 |
---|---|---|---|
? | Œ | Œ | capital 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 |