HTML 4.01 符號實體 · W3School HTML 參考手冊

# HTML 4.01 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 | 結果 | 描述 | 實體名稱 | 實體編號 | | --- | --- | --- | --- | | ? | for all | ∀ | &#8704; | | ? | part | ∂ | &#8706; | | ? | exists | &exists; | &#8707; | | ? | empty | ∅ | &#8709; | | ? | nabla | ∇ | &#8711; | | ∈ | isin | ∈ | &#8712; | | ? | notin | ∉ | &#8713; | | ? | ni | &ni; | &#8715; | | ∏ | prod | ∏ | &#8719; | | ∑ | sum | ∑ | &#8721; | | ? | minus | − | &#8722; | | ? | lowast | &lowast; | &#8727; | | √ | square root | √ | &#8730; | | ∝ | proportional to | &prop; | &#8733; | | ∞ | infinity | ∞ | &#8734; | | ∠ | angle | &ang; | &#8736; | | ∧ | and | &and; | &#8743; | | ∨ | or | &or; | &#8744; | | ∩ | cap | ∩ | &#8745; | | ∪ | cup | ∪ | &#8746; | | ∫ | integral | ∫ | &#8747; | | ∴ | therefore | &there4; | &#8756; | | ～ | simular to | &sim; | &#8764; | | ? | approximately equal | &cong; | &#8773; | | ≈ | almost equal | ≈ | &#8776; | | ≠ | not equal | ≠ | &#8800; | | ≡ | equivalent | &equiv; | &#8801; | | ≤ | less or equal | ≤ | &#8804; | | ≥ | greater or equal | ≥ | &#8805; | | ? | subset of | ⊂ | &#8834; | | ? | superset of | ⊃ | &#8835; | | ? | not subset of | &nsub; | &#8836; | | ? | subset or equal | &sube; | &#8838; | | ? | superset or equal | &supe; | &#8839; | | ⊕ | circled plus | &oplus; | &#8853; | | ? | cirled times | &otimes; | &#8855; | | ⊥ | perpendicular | &perp; | &#8869; | | ? | dot operator | ⋅ | &#8901; | ## HTML 支持的希臘字母 | 結果 | 描述 | 實體名稱 | 實體編號 | | --- | --- | --- | --- | | Α | Alpha | Α | &#913; | | Β | Beta | Β | &#914; | | Γ | Gamma | Γ | &#915; | | Δ | Delta | Δ | &#916; | | Ε | Epsilon | Ε | &#917; | | Ζ | Zeta | Ζ | &#918; | | Η | Eta | Η | &#919; | | Θ | Theta | Θ | &#920; | | Ι | Iota | Ι | &#921; | | Κ | Kappa | Κ | &#922; | | Λ | Lambda | Λ | &#923; | | Μ | Mu | Μ | &#924; | | Ν | Nu | Ν | &#925; | | Ξ | Xi | Ξ | &#926; | | Ο | Omicron | Ο | &#927; | | Π | Pi | Π | &#928; | | Ρ | Rho | Ρ | &#929; | | Sigmaf | undefined | | Σ | Sigma | Σ | &#931; | | Τ | Tau | Τ | &#932; | | Υ | Upsilon | Υ | &#933; | | Φ | Phi | Φ | &#934; | | Χ | Chi | Χ | &#935; | | Ψ | Psi | Ψ | &#936; | | Ω | Omega | Ω | &#937; | | α | alpha | α | &#945; | | β | beta | β | &#946; | | γ | gamma | γ | &#947; | | δ | delta | δ | &#948; | | ε | epsilon | ε | &#949; | | ζ | zeta | ζ | &#950; | | η | eta | η | &#951; | | θ | theta | θ | &#952; | | ι | iota | ι | &#953; | | κ | kappa | κ | &#954; | | λ | lambda | λ | &#923; | | μ | mu | μ | &#956; | | ν | nu | ν | &#925; | | ξ | xi | ξ | &#958; | | ο | omicron | ο | &#959; | | π | pi | π | &#960; | | ρ | rho | ρ | &#961; | | ? | sigmaf | &sigmaf; | &#962; | | σ | sigma | σ | &#963; | | τ | tau | τ | &#964; | | υ | upsilon | υ | &#965; | | φ | phi | φ | &#966; | | χ | chi | χ | &#967; | | ψ | psi | ψ | &#968; | | ω | omega | ω | &#969; | | ? | theta symbol | &thetasym; | &#977; | | ? | upsilon symbol | &upsih; | &#978; | | ? | pi symbol | ϖ | &#982; | ## HTML 支持的其他實體 | 結果 | 描述 | 實體名稱 | 實體編號 | | --- | --- | --- | --- | | ? | capital ligature OE | &OElig; | &#338; | | ? | small ligature oe | &oelig; | &#339; | | ? | capital S with caron | &Scaron; | &#352; | | ? | small S with caron | &scaron; | &#353; | | ? | capital Y with diaeres | &Yuml; | &#376; | | ? | f with hook | &fnof; | &#402; | | ? | modifier letter circumflex accent | &circ; | &#710; | | ? | small tilde | &tilde; | &#732; | | ? | en space | &ensp; | &#8194; | | ? | em space | &emsp; | &#8195; | | ? | thin space |   | &#8201; | | ? | zero width non-joiner | &zwnj; | &#8204; | | ? | zero width joiner | &zwj; | &#8205; | | ? | left-to-right mark | &lrm; | &#8206; | | ? | right-to-left mark | &rlm; | &#8207; | | – | en dash | – | &#8211; | | — | em dash | — | &#8212; | | ‘ | left single quotation mark | ‘ | &#8216; | | ’ | right single quotation mark | ’ | &#8217; | | ? | single low-9 quotation mark | &sbquo; | &#8218; | | “ | left double quotation mark | “ | &#8220; | | ” | right double quotation mark | ” | &#8221; | | ? | double low-9 quotation mark | &bdquo; | &#8222; | | ? | dagger | &dagger; | &#8224; | | ? | double dagger | &Dagger; | &#8225; | | ? | bullet | • | &#8226; | | … | horizontal ellipsis | … | &#8230; | | ‰ | per mille? | &permil; | &#8240; | | ′ | minutes | ′ | &#8242; | | ″ | seconds | ″ | &#8243; | | ? | single left angle quotation | &lsaquo; | &#8249; | | ? | single right angle quotation | &rsaquo; | &#8250; | | ￣ | overline | &oline; | &#8254; | | € | euro | € | &#8364; | | ? | trademark | ™ | &#8482; | | ← | left arrow | ← | &#8592; | | ↑ | up arrow | ↑ | &#8593; | | → | right arrow | → | &#8594; | | ↓ | down arrow | ↓ | &#8595; | | ? | left right arrow | ↔ | &#8596; | | ? | carriage return arrow | &crarr; | &#8629; | | ? | left ceiling | &lceil; | &#8968; | | ? | right ceiling | &rceil; | &#8969; | | ? | left floor | &lfloor; | &#8970; | | ? | right floor | &rfloor; | &#8971; | | ? | lozenge | &loz; | &#9674; | | ? | spade | &spades; | &#9824; | | ? | club | &clubs; | &#9827; | | ? | heart | &hearts; | &#9829; | | ? | diamond | &diams; | &#9830; |