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      HTML 4.01 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

      结果 描述 实体名称 实体编号
      for all &forall; &#8704;
      part &part; &#8706;
      exists &exists; &#8707;
      empty &empty; &#8709;
      nabla &nabla; &#8711;
      isin &isin; &#8712;
      notin &notin; &#8713;
      ni &ni; &#8715;
      prod &prod; &#8719;
      sum &sum; &#8721;
      minus &minus; &#8722;
      lowast &lowast; &#8727;
      square root &radic; &#8730;
      proportional to &prop; &#8733;
      infinity &infin; &#8734;
      angle &ang; &#8736;
      and &and; &#8743;
      or &or; &#8744;
      cap &cap; &#8745;
      cup &cup; &#8746;
      integral &int; &#8747;
      therefore &there4; &#8756;
      simular to &sim; &#8764;
      approximately equal &cong; &#8773;
      almost equal &asymp; &#8776;
      not equal &ne; &#8800;
      equivalent &equiv; &#8801;
      less or equal &le; &#8804;
      greater or equal &ge; &#8805;
      subset of &sub; &#8834;
      superset of &sup; &#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 &sdot; &#8901;

      HTML 支持的希腊字母

      结果 描述 实体名称 实体编号
      Α Alpha &Alpha; &#913;
      Β Beta &Beta; &#914;
      Γ Gamma &Gamma; &#915;
      Δ Delta &Delta; &#916;
      Ε Epsilon &Epsilon; &#917;
      Ζ Zeta &Zeta; &#918;
      Η Eta &Eta; &#919;
      Θ Theta &Theta; &#920;
      Ι Iota &Iota; &#921;
      Κ Kappa &Kappa; &#922;
      Λ Lambda &Lambda; &#923;
      Μ Mu &Mu; &#924;
      Ν Nu &Nu; &#925;
      Ξ Xi &Xi; &#926;
      Ο Omicron &Omicron; &#927;
      Π Pi &Pi; &#928;
      Ρ Rho &Rho; &#929;
        Sigmaf   undefined
      Σ Sigma &Sigma; &#931;
      Τ Tau &Tau; &#932;
      Υ Upsilon &Upsilon; &#933;
      Φ Phi &Phi; &#934;
      Χ Chi &Chi; &#935;
      Ψ Psi &Psi; &#936;
      Ω Omega &Omega; &#937;
             
      α alpha &alpha; &#945;
      β beta &beta; &#946;
      γ gamma &gamma; &#947;
      δ delta &delta; &#948;
      ε epsilon &epsilon; &#949;
      ζ zeta &zeta; &#950;
      η eta &eta; &#951;
      θ theta &theta; &#952;
      ι iota &iota; &#953;
      κ kappa &kappa; &#954;
      λ lambda &lambda; &#923;
      μ mu &mu; &#956;
      ν nu &nu; &#925;
      ξ xi &xi; &#958;
      ο omicron &omicron; &#959;
      π pi &pi; &#960;
      ρ rho &rho; &#961;
      ς sigmaf &sigmaf; &#962;
      σ sigma &sigma; &#963;
      τ tau &tau; &#964;
      υ upsilon &upsilon; &#965;
      φ phi &phi; &#966;
      χ chi &chi; &#967;
      ψ psi &psi; &#968;
      ω omega &omega; &#969;
             
      ϑ theta symbol &thetasym; &#977;
      ϒ upsilon symbol &upsih; &#978;
      ϖ pi symbol &piv; &#982;

      HTML 支持的其他实体

      结果 描述 实体名称 实体编号
      Πcapital ligature OE &OElig; &#338;
      œ small ligature oe &oelig; &#339;
      Š capital S with caron &Scaron; &#352;
      š small S with caron &scaron; &#353;
      Ÿ capital Y with diaeres &Yuml; &#376;
      ƒ f with hook &fnof; &#402;
      ˆ modifier letter circumflex accent &circ; &#710;
      ˜ small tilde &tilde; &#732;
      en space &ensp; &#8194;
      em space &emsp; &#8195;
      thin space &thinsp; &#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 &ndash; &#8211;
      em dash &mdash; &#8212;
      left single quotation mark &lsquo; &#8216;
      right single quotation mark &rsquo; &#8217;
      single low-9 quotation mark &sbquo; &#8218;
      left double quotation mark &ldquo; &#8220;
      right double quotation mark &rdquo; &#8221;
      double low-9 quotation mark &bdquo; &#8222;
      dagger &dagger; &#8224;
      double dagger &Dagger; &#8225;
      bullet &bull; &#8226;
      horizontal ellipsis &hellip; &#8230;
      per mille  &permil; &#8240;
      minutes &prime; &#8242;
      seconds &Prime; &#8243;
      single left angle quotation &lsaquo; &#8249;
      single right angle quotation &rsaquo; &#8250;
      overline &oline; &#8254;
      euro &euro; &#8364;
      trademark &trade; &#8482;
      left arrow &larr; &#8592;
      up arrow &uarr; &#8593;
      right arrow &rarr; &#8594;
      down arrow &darr; &#8595;
      left right arrow &harr; &#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;
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