Widely Supported HTML4 and Unicode Characters

Technical Symbols

Logical Symbols

≠≠≠not equal to
&&&ampersand
∧∧∧logical ‘and’ sign
¬¬¬not sign
∼∼∼tilde operator = varies with = similar to
∨∨∨logical ‘or’ sign
→→→rightwards arrow
←←←leftwards arrow
↔↔↔left right arrow
⇕⇕up down double arrow
≡≡≡identical to
∀∀∀for all
∃∃∃there exists
℩℩symbol for definite description operator "the"
□□box = necessarily
◊◊◊lozenge = possibly
⇒⇒⇒rightwards double arrow
⇐⇐⇐leftwards double arrow
⇔⇔⇔left right double arrow
∴∴∴therefore
⊥⊥⊥up tack = orthogonal to = perpendicular
⊤⊤down tack = top
⊣⊣left turnstile = adjoint
⊢⊢turnstile, proves
⊨⊨models, makes true
⊬⊬doesn't prove
⊭⊭doesn't model, doesn't make true

Set Theory Symbols

∈∈∈element of
∉∉∉not an element of
∋∋∋contains as member
∅∅∅empty set
∩∩∩intersection = cap
∪∪∪union = cup
⊂⊂⊂subset of
⊃⊃⊃superset of
⊄⊄⊄not a subset of
⊆⊆⊆subset of or equal to
⊇⊇⊇superset of or equal to
○○function composition
⨡⨡domain restrictor

Mathematical Symbols

−−−minus sign
±±±plus-or-minus sign
×××multiply sign
÷÷÷divide sign
<&lt;&#60;less-than sign
>&gt;&#62;greater-than sign
≤&le;&#8804;less-than or equal to
≥&ge;&#8805;greater-than or equal to
≰&#8816;not less-than or equal to
¼&frac14;&#188;fraction one-quarter
½&frac12;&#189;fraction one-half
¾&frac34;&#190;fraction three-quarters
¹&sup1;&#185;superscript one
²&sup2;&#178;superscript two
³&sup3;&#179;superscript three
°&deg;&#176;degree sign
·&middot;&#183;middle dot
ƒ&fnof;&#402;latin small f with hook = function = florin
′&prime;&#8242;prime = minutes = feet
″&Prime;&#8243;double prime = seconds = inches
‾&oline;&#8254;overline = spacing overscore
⁄&frasl;&#8260;fraction slash
ℵ&alefsym;&#8501;Hebrew alef
∂&part;&#8706;partial differential
∑&sum;&#8721;n-ary sumation
∇&nabla;&#8711;nabla = backward difference
√&radic;&#8730;square root = radical sign
∝&prop;&#8733;proportional to
∞&infin;&#8734;infinity
∠&ang;&#8736;angle
∫&int;&#8747;integral
≅&cong;&#8773;approximately equal to
≈&asymp;&#8776;almost equal to = asymptotic to
⊕&oplus;&#8853;circled plus = direct sum
⊗&otimes;&#8855;circled times = vector product
‰&permil;&#8240;per mille sign
ℜ&real;&#8476;set of real numbers
℘&weierp;&#8472;power set
ℑ&image;&#8465;fraktur I, imaginary, interpretation
≺&#8826;precedes
≻&#8827;succeeds
≼&#8828;precedes or equal to
≽&#8829;succeeds or equal to
⋠&#8928;not precedes or equal to
⊲&#8882;is contained in as subgroup
⊳&#8883;contains as subgroup
⊴&#8884;is contained in or equal to
ℏ&#8463;Dirac constant
ℕ&#8469;&#8469;set of natural numbers
ℚ&#8474;&#8474;set of rational numbers
ℤ&#8484;&#8484;set of integers

Miscellaneous Technical Symbols

↑&uarr;&#8593;upwards arrow
↓&darr;&#8595;downwards arrow

Alphabetic Characters

Latin Characters

À&Agrave;&#192;capital A, grave accent
Á&Aacute;&#193;capital A, acute accent
Â&Acirc;&#194;capital A, circumflex accent
Ã&Atilde;&#195;capital A, tilde
Ä&Auml;&#196;capital A, dieresis or umlaut mark
Å&Aring;&#197;capital A, ring
Æ&AElig;&#198;capital AE diphthong (ligature)
Ç&Ccedil;&#199;capital C, cedilla
È&Egrave;&#200;capital E, grave accent
É&Eacute;&#201;capital E, acute accent
Ê&Ecirc;&#202;capital E, circumflex accent
Ë&Euml;&#203;capital E, dieresis or umlaut mark
Ì&Igrave;&#204;capital I, grave accent
Í&Iacute;&#205;capital I, acute accent
Î&Icirc;&#206;capital I, circumflex accent
Ï&Iuml;&#207;capital I, dieresis or umlaut mark
Ð&ETH;&#208;capital Eth, Icelandic
Ñ&Ntilde;&#209;capital N, tilde
Ò&Ograve;&#210;capital O, grave accent
Ó&Oacute;&#211;capital O, acute accent
Ô&Ocirc;&#212;capital O, circumflex accent
Õ&Otilde;&#213;capital O, tilde
Ö&Ouml;&#214;capital O, dieresis or umlaut mark
Ø&Oslash;&#216;capital O, slash
Ù&Ugrave;&#217;capital U, grave accent
Ú&Uacute;&#218;capital U, acute accent
Û&Ucirc;&#219;capital U, circumflex accent
Ü&Uuml;&#220;capital U, dieresis or umlaut mark
Ý&Yacute;&#221;capital Y, acute accent
Þ&THORN;&#222;capital THORN, Icelandic
ß&szlig;&#223;small sharp s, German (sz ligature)
à&agrave;&#224;small a, grave accent
á&aacute;&#225;small a, acute accent
â&acirc;&#226;small a, circumflex accent
ã&atilde;&#227;small a, tilde
ä&auml;&#228;small a, dieresis or umlaut mark
å&aring;&#229;small a, ring
æ&aelig;&#230;small ae diphthong (ligature)
ç&ccedil;&#231;small c, cedilla
è&egrave;&#232;small e, grave accent
é&eacute;&#233;small e, acute accent
ê&ecirc;&#234;small e, circumflex accent
ë&euml;&#235;small e, dieresis or umlaut mark
ì&igrave;&#236;small i, grave accent
í&iacute;&#237;small i, acute accent
î&icirc;&#238;small i, circumflex accent
ï&iuml;&#239;small i, dieresis or umlaut mark
ð&eth;&#240;small eth, Icelandic
ñ&ntilde;&#241;small n, tilde
ò&ograve;&#242;small o, grave accent
ó&oacute;&#243;small o, acute accent
ô&ocirc;&#244;small o, circumflex accent
õ&otilde;&#245;small o, tilde
ö&ouml;&#246;small o, dieresis or umlaut mark
ø&oslash;&#248;small o, slash
ù&ugrave;&#249;small u, grave accent
ú&uacute;&#250;small u, acute accent
û&ucirc;&#251;small u, circumflex accent
ü&uuml;&#252;small u, dieresis or umlaut mark
ý&yacute;&#253;small y, acute accent
þ&thorn;&#254;small thorn, Icelandic
ÿ&yuml;&#255;small y, dieresis or umlaut mark
Œ&OElig;&#338;latin capital ligature oe
œ&oelig;&#339;latin small ligature oe
Š&Scaron;&#352;latin capital lr s with caron
š&scaron;&#353;latin small r s with caron
Ÿ&Yuml;&#376;latin capital letter y with diaeresis

Greek Characters

Α&Alpha;&#913;greek capital letter alpha
Β&Beta;&#914;greek capital letter beta
Γ&Gamma;&#915;greek capital letter gamma
Δ&Delta;&#916;greek capital letter delta
Ε&Epsilon;&#917;greek capital letter epsilon
Ζ&Zeta;&#918;greek capital letter zeta
Η&Eta;&#919;greek capital letter eta
Θ&Theta;&#920;greek capital letter theta
Ι&Iota;&#921;greek capital letter iota
Κ&Kappa;&#922;greek capital letter kappa
Λ&Lambda;&#923;greek capital letter lambda
Μ&Mu;&#924;greek capital letter mu
Ν&Nu;&#925;greek capital letter nu
Ξ&Xi;&#926;greek capital letter xi
Ο&Omicron;&#927;greek capital letter omicron
Π&Pi;&#928;greek capital letter pi
Ρ&Rho;&#929;greek capital letter rho
Σ&Sigma;&#931;greek capital letter sigma
Τ&Tau;&#932;greek capital letter tau
Υ&Upsilon;&#933;greek capital letter upsilon
Φ&Phi;&#934;greek capital letter phi
Χ&Chi;&#935;greek capital letter chi
Ψ&Psi;&#936;greek capital letter psi
Ω&Omega;&#937;greek capital letter omega
α&alpha;&#945;greek small letter alpha
β&beta;&#946;greek small letter beta
γ&gamma;&#947;greek small letter gamma
δ&delta;&#948;greek small letter delta
ε&epsilon;&#949;greek small letter epsilon
ζ&zeta;&#950;greek small letter zeta
η&eta;&#951;greek small letter eta
θ&theta;&#952;greek small letter theta
ι&iota;&#953;greek small letter iota
κ&kappa;&#954;greek small letter kappa
λ&lambda;&#955;greek small letter lambda
μ&mu;&#956;greek small letter mu
ν&nu;&#957;greek small letter nu
ξ&xi;&#958;greek small letter xi
ο&omicron;&#959;greek small letter omicron
π&pi;&#960;greek small letter pi
ρ&rho;&#961;greek small letter rho
ς&sigmaf;&#962;greek small letter final sigma
σ&sigma;&#963;greek small letter sigma
τ&tau;&#964;greek small letter tau
υ&upsilon;&#965;greek small letter upsilon
φ&phi;&#966;greek small letter phi
χ&chi;&#967;greek small letter chi
ψ&psi;&#968;greek small letter psi
ω&omega;&#969;greek small letter omega

Polish, Czech, Slovene, etc., Characters

Ą&#260;&#260;upper case A ogonek
ą&#261;&#261;lower case a ogonek
Ć&#262;&#262;upper case C acute
ć&#263;&#263;lower case c acute
Č&#268;&#268;upper case C caron
č&#269;&#269;lower case c caron
Ę&#280;&#280;upper case E ogonek
ę&#281;&#281;lower case e ogonek
ě&#283;&#283;lower case e caron
Ł&#321;&#321;upper case L slash
ł&#322;&#322;lower case l slash
Ń&#323;&#323;upper case N acute
ń&#324;&#324;lower case n acute
Ř&#344;&#344;upper case R caron
ř&#345;&#345;lower case r caron
Š&#352;&#352;upper case S caron
š&#353;&#353;lower case s caron
Ś&#346;&#346;upper case S acute
ś&#347;&#347;lower case s acute
Ź&#377;&#377;upper case Z acute
ź&#378;&#378;lower case z acute
Ż&#379;&#379;upper case Z dot
ż&#380;&#380;lower case z dot
Ž&#381;&#381;upper case Z caron
ž&#382;&#382;lower case z caron

Special Diacritics

Ā&#256;&#256;upper case A macron
ā&#257;&#257;lower case a macron
ḍ&#7693;&#7693;lower case d with dot below
ğ&#287;&#287;lower case g with breve
Ḥ&#7716;&#7716;upper case H with dot below
ḥ&#7717;&#7717;lower case h with dot below
Ī&#298;&#298;upper case I macron
ī&#299;&#299;lower case i macron
ṃ&#7747;&#7747;lower case m with dot below
Ṁ&#7744;&#7744;upper case M with dot above
ṁ&#7745;&#7745;lower case m with dot above
ṇ&#7751;&#7751;lower case n with dot below
ṅ&#7749;&#7749;lower case n with dot above
ō&#333;&#333;lower case o macron
ṛ&#7771;&#7771;lower case r with dot below
Ś&#346;&#346;upper case S acute
ś&#347;&#347;lower case s acute
Ṣ&#7778;&#7778;upper case S with dot below
ṣ&#7779;&#7779;lower case s with dot below
ṭ&#7789;&#7789;lower case t with dot below
Ṭ&#7788;&#7788;upper case T with dot below
ū&#363;&#363;lower case u macron
Ṽ&#7804;&#7804;upper case V tilde
ẓ&#7827;&#7827;upper case Z with dot below

Other Alphabetic Characters With Diacritical Marks

ā&#257;&257;a with macron
ē&#275;&275;e with macron
ī&#299;&299;i with macron
ō&#333;&333;o with macron
ū&#363;&363;u with macron

See http://symbolcodes.tlt.psu.edu/bylanguage/ipavowels.html

Punctuation, Diacritical Marks, and Special Characters

General Punctuation

"&quot;&#34;quotation mark = apl quote
‘&lsquo;&#8216;left single quotation mark
’&rsquo;&#8217;right single quotation mark
“&ldquo;&#8220;left double quotation mark
”&rdquo;&#8221;right double quotation mark
–&ndash;&#8211;en dash
—&mdash;&#8212;em dash
…&hellip;&#8230;horizontal ellipsis = three dot leader
•&bull;&#8226;bullet = black small circle
§&sect;&#167;section sign
&para;&#182;pilcrow (paragraph sign)
«&laquo;&#171;angle quotation mark, left
»&raquo;&#187;angle quotation mark, right
‹&lsaquo;&#8249;single left-pointing angle quotation mark
›&rsaquo;&#8250;single right-pointing angle quotation mark
⟨&#10216;&#10216; left-pointing angle bracket
⟩&#10217;&#10217; right-pointing angle bracket
¡&iexcl;&#161;inverted exclamation mark
¿&iquest;&#191;inverted question mark
‚&sbquo;&#8218;single low-9 quotation mark
„&bdquo;&#8222;double low-9 quotation mark
†&dagger;&#8224;dagger
‡&Dagger;&#8225;double dagger
 &ensp;&#8194;en space
 &emsp;&#8195;em space
 &thinsp;&#8201;thin space
 &nbsp;&#160;no-break space
⌈&lceil;&#8968;left ceiling
⌉&rceil;&#8969;right ceiling
⌊&lfloor;&#8970;left floor
⌋&rfloor;&#8971;right floor
⟦&#10214;&#10214;left square double bracket
⟧&#10215;&#10215;right square double bracket

Diacritical Marks

´&acute;&#180;acute accent
¨&uml;&#168;umlaut (dieresis)
¯&macr;&#175;macron
¸&cedil;&#184;cedilla
ˆ&circ;&#710;modifier letter circumflex accent
˜&tilde;&#732;small tilde

General Purpose Symbols

ª&ordf;&#170;ordinal indicator, feminine
º&ordm;&#186;ordinal indicator, masculine
¦&brvbar;&#166;broken (vertical) bar
©&copy;&#169;copyright sign
®&reg;&#174;registered sign
™&trade;&#8482;trade mark sign
µ&micro;&#181;micro sign

Currency/Cards

¢&cent;&#162;cent sign
£&pound;&#163;pound sterling sign
¤&curren;&#164;general currency sign
¥&yen;&#y165;yen sign
€&euro;&#8364;euro sign
♠&spades;&#9824;black spade suit
♣&clubs;&#9827;black club suit = shamrock
♥&hearts;&#9829;black heart suit = valentine
♦&diams;&#9830;black diamond suit
[an error occurred while processing the directive]