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@@ -109,106 +109,270 @@ of a HTML tag are passed on to the HTML output only
<li><tt>\</VAR\></tt> Ends a <tt>\<VAR\></tt> section.
</ul>
-The special HTML character entities that are recognized by Doxygen:
-
+The special HTML4 character entities.<br>
+The list of entities with their descriptions has been taken from <a href="http://www.w3.org/TR/html4/sgml/entities.html">Character entity references in HTML 4</a>.
+( Portions &copy; International Organization for Standardization 1986
+ Permission to copy in any form is granted for use with
+ conforming SGML systems and applications as defined in
+ ISO 8879, provided this notice is included in all copies.)
+<ul>
+<li><tt>\&nbsp;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` no-break space = non-breaking space: &nbsp;
+<li><tt>\&iexcl;</tt>`&nbsp;&nbsp;&nbsp;` inverted exclamation mark: &iexcl;
+<li><tt>\&cent;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` cent sign: &cent;
+<li><tt>\&pound;</tt>`&nbsp;&nbsp;&nbsp;` pound sign: &pound;
+<li><tt>\&curren;</tt>`&nbsp;&nbsp;` currency sign: &curren;
+<li><tt>\&yen;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` yen sign = yuan sign: &yen;
+<li><tt>\&brvbar;</tt>`&nbsp;&nbsp;` broken bar = broken vertical bar: &brvbar;
+<li><tt>\&sect;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` section sign: &sect;
+<li><tt>\&uml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` diaeresis = spacing diaeresis: &uml;
+<li><tt>\&copy;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` copyright sign: &copy;
+<li><tt>\&ordf;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` feminine ordinal indicator: &ordf;
+<li><tt>\&laquo;</tt>`&nbsp;&nbsp;&nbsp;` left-pointing double angle quotation mark = left pointing guillemet: &laquo;
+<li><tt>\&not;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` not sign: &not;
+<li><tt>\&shy;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` soft hyphen = discretionary hyphen: &shy;
+<li><tt>\&reg;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` registered sign = registered trade mark sign: &reg;
+<li><tt>\&macr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` macron = spacing macron = overline = APL overbar: &macr;
+<li><tt>\&deg;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` degree sign: &deg;
+<li><tt>\&plusmn;</tt>`&nbsp;&nbsp;` plus-minus sign = plus-or-minus sign: &plusmn;
+<li><tt>\&sup2;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` superscript two = superscript digit two = squared: &sup2;
+<li><tt>\&sup3;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` superscript three = superscript digit three = cubed: &sup3;
+<li><tt>\&acute;</tt>`&nbsp;&nbsp;&nbsp;` acute accent = spacing acute: &acute;
+<li><tt>\&micro;</tt>`&nbsp;&nbsp;&nbsp;` micro sign: &micro;
+<li><tt>\&para;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` pilcrow sign = paragraph sign: &para;
+<li><tt>\&middot;</tt>`&nbsp;&nbsp;` middle dot = Georgian comma = Greek middle dot: &middot;
+<li><tt>\&cedil;</tt>`&nbsp;&nbsp;&nbsp;` cedilla = spacing cedilla: &cedil;
+<li><tt>\&sup1;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` superscript one = superscript digit one: &sup1;
+<li><tt>\&ordm;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` masculine ordinal indicator: &ordm;
+<li><tt>\&raquo;</tt>`&nbsp;&nbsp;&nbsp;` right-pointing double angle quotation mark = right pointing guillemet: &raquo;
+<li><tt>\&frac14;</tt>`&nbsp;&nbsp;` vulgar fraction one quarter = fraction one quarter: &frac14;
+<li><tt>\&frac12;</tt>`&nbsp;&nbsp;` vulgar fraction one half = fraction one half: &frac12;
+<li><tt>\&frac34;</tt>`&nbsp;&nbsp;` vulgar fraction three quarters = fraction three quarters: &frac34;
+<li><tt>\&iquest;</tt>`&nbsp;&nbsp;` inverted question mark = turned question mark: &iquest;
+<li><tt>\&Agrave;</tt>`&nbsp;&nbsp;` latin capital letter A with grave = latin capital letter A grave: &Agrave;
+<li><tt>\&Aacute;</tt>`&nbsp;&nbsp;` latin capital letter A with acute: &Aacute;
+<li><tt>\&Acirc;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter A with circumflex: &Acirc;
+<li><tt>\&Atilde;</tt>`&nbsp;&nbsp;` latin capital letter A with tilde: &Atilde;
+<li><tt>\&Auml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter A with diaeresis: &Auml;
+<li><tt>\&Aring;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter A with ring above = latin capital letter A ring: &Aring;
+<li><tt>\&AElig;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter AE = latin capital ligature AE: &AElig;
+<li><tt>\&Ccedil;</tt>`&nbsp;&nbsp;` latin capital letter C with cedilla: &Ccedil;
+<li><tt>\&Egrave;</tt>`&nbsp;&nbsp;` latin capital letter E with grave: &Egrave;
+<li><tt>\&Eacute;</tt>`&nbsp;&nbsp;` latin capital letter E with acute: &Eacute;
+<li><tt>\&Ecirc;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter E with circumflex: &Ecirc;
+<li><tt>\&Euml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter E with diaeresis: &Euml;
+<li><tt>\&Igrave;</tt>`&nbsp;&nbsp;` latin capital letter I with grave: &Igrave;
+<li><tt>\&Iacute;</tt>`&nbsp;&nbsp;` latin capital letter I with acute: &Iacute;
+<li><tt>\&Icirc;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter I with circumflex: &Icirc;
+<li><tt>\&Iuml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter I with diaeresis: &Iuml;
+<li><tt>\&ETH;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter ETH: &ETH;
+<li><tt>\&Ntilde;</tt>`&nbsp;&nbsp;` latin capital letter N with tilde: &Ntilde;
+<li><tt>\&Ograve;</tt>`&nbsp;&nbsp;` latin capital letter O with grave: &Ograve;
+<li><tt>\&Oacute;</tt>`&nbsp;&nbsp;` latin capital letter O with acute: &Oacute;
+<li><tt>\&Ocirc;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter O with circumflex: &Ocirc;
+<li><tt>\&Otilde;</tt>`&nbsp;&nbsp;` latin capital letter O with tilde: &Otilde;
+<li><tt>\&Ouml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter O with diaeresis: &Ouml;
+<li><tt>\&times;</tt>`&nbsp;&nbsp;&nbsp;` multiplication sign: &times;
+<li><tt>\&Oslash;</tt>`&nbsp;&nbsp;` latin capital letter O with stroke = latin capital letter O slash: &Oslash;
+<li><tt>\&Ugrave;</tt>`&nbsp;&nbsp;` latin capital letter U with grave: &Ugrave;
+<li><tt>\&Uacute;</tt>`&nbsp;&nbsp;` latin capital letter U with acute: &Uacute;
+<li><tt>\&Ucirc;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter U with circumflex: &Ucirc;
+<li><tt>\&Uuml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter U with diaeresis: &Uuml;
+<li><tt>\&Yacute;</tt>`&nbsp;&nbsp;` latin capital letter Y with acute: &Yacute;
+<li><tt>\&THORN;</tt>`&nbsp;&nbsp;&nbsp;` latin capital letter THORN: &THORN;
+<li><tt>\&szlig;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter sharp s = ess-zed: &szlig;
+<li><tt>\&agrave;</tt>`&nbsp;&nbsp;` latin small letter a with grave = latin small letter a grave: &agrave;
+<li><tt>\&aacute;</tt>`&nbsp;&nbsp;` latin small letter a with acute: &aacute;
+<li><tt>\&acirc;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter a with circumflex: &acirc;
+<li><tt>\&atilde;</tt>`&nbsp;&nbsp;` latin small letter a with tilde: &atilde;
+<li><tt>\&auml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter a with diaeresis: &auml;
+<li><tt>\&aring;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter a with ring above = latin small letter a ring: &aring;
+<li><tt>\&aelig;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter ae = latin small ligature ae: &aelig;
+<li><tt>\&ccedil;</tt>`&nbsp;&nbsp;` latin small letter c with cedilla: &ccedil;
+<li><tt>\&egrave;</tt>`&nbsp;&nbsp;` latin small letter e with grave: &egrave;
+<li><tt>\&eacute;</tt>`&nbsp;&nbsp;` latin small letter e with acute: &eacute;
+<li><tt>\&ecirc;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter e with circumflex: &ecirc;
+<li><tt>\&euml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter e with diaeresis: &euml;
+<li><tt>\&igrave;</tt>`&nbsp;&nbsp;` latin small letter i with grave: &igrave;
+<li><tt>\&iacute;</tt>`&nbsp;&nbsp;` latin small letter i with acute: &iacute;
+<li><tt>\&icirc;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter i with circumflex: &icirc;
+<li><tt>\&iuml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter i with diaeresis: &iuml;
+<li><tt>\&eth;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter eth: &eth;
+<li><tt>\&ntilde;</tt>`&nbsp;&nbsp;` latin small letter n with tilde: &ntilde;
+<li><tt>\&ograve;</tt>`&nbsp;&nbsp;` latin small letter o with grave: &ograve;
+<li><tt>\&oacute;</tt>`&nbsp;&nbsp;` latin small letter o with acute: &oacute;
+<li><tt>\&ocirc;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter o with circumflex: &ocirc;
+<li><tt>\&otilde;</tt>`&nbsp;&nbsp;` latin small letter o with tilde: &otilde;
+<li><tt>\&ouml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter o with diaeresis: &ouml;
+<li><tt>\&divide;</tt>`&nbsp;&nbsp;` division sign: &divide;
+<li><tt>\&oslash;</tt>`&nbsp;&nbsp;` latin small letter o with stroke, = latin small letter o slash: &oslash;
+<li><tt>\&ugrave;</tt>`&nbsp;&nbsp;` latin small letter u with grave: &ugrave;
+<li><tt>\&uacute;</tt>`&nbsp;&nbsp;` latin small letter u with acute: &uacute;
+<li><tt>\&ucirc;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter u with circumflex: &ucirc;
+<li><tt>\&uuml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter u with diaeresis: &uuml;
+<li><tt>\&yacute;</tt>`&nbsp;&nbsp;` latin small letter y with acute: &yacute;
+<li><tt>\&thorn;</tt>`&nbsp;&nbsp;&nbsp;` latin small letter thorn: &thorn;
+<li><tt>\&yuml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small letter y with diaeresis: &yuml;
+<li><tt>\&fnof;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin small f with hook = function = florin: &fnof;
+<li><tt>\&Alpha;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter alpha: &Alpha;
+<li><tt>\&Beta;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter beta: &Beta;
+<li><tt>\&Gamma;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter gamma: &Gamma;
+<li><tt>\&Delta;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter delta: &Delta;
+<li><tt>\&Epsilon;</tt>`&nbsp;` greek capital letter epsilon: &Epsilon;
+<li><tt>\&Zeta;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter zeta: &Zeta;
+<li><tt>\&Eta;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter eta: &Eta;
+<li><tt>\&Theta;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter theta: &Theta;
+<li><tt>\&Iota;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter iota: &Iota;
+<li><tt>\&Kappa;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter kappa: &Kappa;
+<li><tt>\&Lambda;</tt>`&nbsp;&nbsp;` greek capital letter lambda: &Lambda;
+<li><tt>\&Mu;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter mu: &Mu;
+<li><tt>\&Nu;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter nu: &Nu;
+<li><tt>\&Xi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter xi: &Xi;
+<li><tt>\&Omicron;</tt>`&nbsp;` greek capital letter omicron: &Omicron;
+<li><tt>\&Pi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter pi: &Pi;
+<li><tt>\&Rho;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter rho: &Rho;
+<li><tt>\&Sigma;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter sigma: &Sigma;
+<li><tt>\&Tau;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter tau: &Tau;
+<li><tt>\&Upsilon;</tt>`&nbsp;` greek capital letter upsilon: &Upsilon;
+<li><tt>\&Phi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter phi: &Phi;
+<li><tt>\&Chi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter chi: &Chi;
+<li><tt>\&Psi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek capital letter psi: &Psi;
+<li><tt>\&Omega;</tt>`&nbsp;&nbsp;&nbsp;` greek capital letter omega: &Omega;
+<li><tt>\&alpha;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter alpha: &alpha;
+<li><tt>\&beta;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter beta: &beta;
+<li><tt>\&gamma;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter gamma: &gamma;
+<li><tt>\&delta;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter delta: &delta;
+<li><tt>\&epsilon;</tt>`&nbsp;` greek small letter epsilon: &epsilon;
+<li><tt>\&zeta;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter zeta: &zeta;
+<li><tt>\&eta;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter eta: &eta;
+<li><tt>\&theta;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter theta: &theta;
+<li><tt>\&iota;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter iota: &iota;
+<li><tt>\&kappa;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter kappa: &kappa;
+<li><tt>\&lambda;</tt>`&nbsp;&nbsp;` greek small letter lambda: &lambda;
+<li><tt>\&mu;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter mu: &mu;
+<li><tt>\&nu;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter nu: &nu;
+<li><tt>\&xi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter xi: &xi;
+<li><tt>\&omicron;</tt>`&nbsp;` greek small letter omicron: &omicron;
+<li><tt>\&pi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter pi: &pi;
+<li><tt>\&rho;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter rho: &rho;
+<li><tt>\&sigmaf;</tt>`&nbsp;&nbsp;` greek small letter final sigma: &sigmaf;
+<li><tt>\&sigma;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter sigma: &sigma;
+<li><tt>\&tau;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter tau: &tau;
+<li><tt>\&upsilon;</tt>`&nbsp;` greek small letter upsilon: &upsilon;
+<li><tt>\&phi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter phi: &phi;
+<li><tt>\&chi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter chi: &chi;
+<li><tt>\&psi;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek small letter psi: &psi;
+<li><tt>\&omega;</tt>`&nbsp;&nbsp;&nbsp;` greek small letter omega: &omega;
+<li><tt>\&thetasym;</tt> greek small letter theta symbol: &thetasym;
+<li><tt>\&upsih;</tt>`&nbsp;&nbsp;&nbsp;` greek upsilon with hook symbol: &upsih;
+<li><tt>\&piv;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greek pi symbol: &piv;
+<li><tt>\&bull;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` bullet = black small circle: &bull;
+<li><tt>\&hellip;</tt>`&nbsp;&nbsp;` horizontal ellipsis = three dot leader: &hellip;
+<li><tt>\&prime;</tt>`&nbsp;&nbsp;&nbsp;` prime = minutes = feet: &prime;
+<li><tt>\&Prime;</tt>`&nbsp;&nbsp;&nbsp;` double prime = seconds = inches: &Prime;
+<li><tt>\&oline;</tt>`&nbsp;&nbsp;&nbsp;` overline = spacing overscore: &oline;
+<li><tt>\&frasl;</tt>`&nbsp;&nbsp;&nbsp;` fraction slash: &frasl;
+<li><tt>\&weierp;</tt>`&nbsp;&nbsp;` script capital P = power set = Weierstrass p: &weierp;
+<li><tt>\&image;</tt>`&nbsp;&nbsp;&nbsp;` blackletter capital I = imaginary part: &image;
+<li><tt>\&real;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` blackletter capital R = real part symbol: &real;
+<li><tt>\&trade;</tt>`&nbsp;&nbsp;&nbsp;` trade mark sign: &trade;
+<li><tt>\&alefsym;</tt>`&nbsp;` alef symbol = first transfinite cardinal: &alefsym;
+<li><tt>\&larr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` leftwards arrow: &larr;
+<li><tt>\&uarr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` upwards arrow: &uarr;
+<li><tt>\&rarr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` rightwards arrow: &rarr;
+<li><tt>\&darr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` downwards arrow: &darr;
+<li><tt>\&harr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` left right arrow: &harr;
+<li><tt>\&crarr;</tt>`&nbsp;&nbsp;&nbsp;` downwards arrow with corner leftwards = carriage return: &crarr;
+<li><tt>\&lArr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` leftwards double arrow: &lArr;
+<li><tt>\&uArr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` upwards double arrow: &uArr;
+<li><tt>\&rArr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` rightwards double arrow: &rArr;
+<li><tt>\&dArr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` downwards double arrow: &dArr;
+<li><tt>\&hArr;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` left right double arrow: &hArr;
+<li><tt>\&forall;</tt>`&nbsp;&nbsp;` for all: &forall;
+<li><tt>\&part;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` partial differential: &part;
+<li><tt>\&exist;</tt>`&nbsp;&nbsp;&nbsp;` there exists: &exist;
+<li><tt>\&empty;</tt>`&nbsp;&nbsp;&nbsp;` empty set = null set = diameter: &empty;
+<li><tt>\&nabla;</tt>`&nbsp;&nbsp;&nbsp;` nabla = backward difference: &nabla;
+<li><tt>\&isin;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` element of: &isin;
+<li><tt>\&notin;</tt>`&nbsp;&nbsp;&nbsp;` not an element of: &notin;
+<li><tt>\&ni;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` contains as member: &ni;
+<li><tt>\&prod;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` n-ary product = product sign: &prod;
+<li><tt>\&sum;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` n-ary sumation: &sum;
+<li><tt>\&minus;</tt>`&nbsp;&nbsp;&nbsp;` minus sign: &minus;
+<li><tt>\&lowast;</tt>`&nbsp;&nbsp;` asterisk operator: &lowast;
+<li><tt>\&radic;</tt>`&nbsp;&nbsp;&nbsp;` square root = radical sign: &radic;
+<li><tt>\&prop;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` proportional to: &prop;
+<li><tt>\&infin;</tt>`&nbsp;&nbsp;&nbsp;` infinity: &infin;
+<li><tt>\&ang;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` angle: &ang;
+<li><tt>\&and;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` logical and = wedge: &and;
+<li><tt>\&or;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` logical or = vee: &or;
+<li><tt>\&cap;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` intersection = cap: &cap;
+<li><tt>\&cup;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` union = cup: &cup;
+<li><tt>\&int;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` integral: &int;
+<li><tt>\&there4;</tt>`&nbsp;&nbsp;` therefore: &there4;
+<li><tt>\&sim;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` tilde operator = varies with = similar to: &sim;
+<li><tt>\&cong;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` approximately equal to: &cong;
+<li><tt>\&asymp;</tt>`&nbsp;&nbsp;&nbsp;` almost equal to = asymptotic to: &asymp;
+<li><tt>\&ne;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` not equal to: &ne;
+<li><tt>\&equiv;</tt>`&nbsp;&nbsp;&nbsp;` identical to: &equiv;
+<li><tt>\&le;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` less-than or equal to: &le;
+<li><tt>\&ge;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greater-than or equal to: &ge;
+<li><tt>\&sub;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` subset of: &sub;
+<li><tt>\&sup;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` superset of: &sup;
+<li><tt>\&nsub;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` not a subset of: &nsub;
+<li><tt>\&sube;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` subset of or equal to: &sube;
+<li><tt>\&supe;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` superset of or equal to: &supe;
+<li><tt>\&oplus;</tt>`&nbsp;&nbsp;&nbsp;` circled plus = direct sum: &oplus;
+<li><tt>\&otimes;</tt>`&nbsp;&nbsp;` circled times = vector product: &otimes;
+<li><tt>\&perp;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` up tack = orthogonal to = perpendicular: &perp;
+<li><tt>\&sdot;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` dot operator: &sdot;
+<li><tt>\&lceil;</tt>`&nbsp;&nbsp;&nbsp;` left ceiling = apl upstile: &lceil;
+<li><tt>\&rceil;</tt>`&nbsp;&nbsp;&nbsp;` right ceiling: &rceil;
+<li><tt>\&lfloor;</tt>`&nbsp;&nbsp;` left floor = apl downstile: &lfloor;
+<li><tt>\&rfloor;</tt>`&nbsp;&nbsp;` right floor: &rfloor;
+<li><tt>\&lang;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` left-pointing angle bracket = bra: &lang;
+<li><tt>\&rang;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` right-pointing angle bracket = ket: &rang;
+<li><tt>\&loz;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` lozenge: &loz;
+<li><tt>\&spades;</tt>`&nbsp;&nbsp;` black spade suit: &spades;
+<li><tt>\&clubs;</tt>`&nbsp;&nbsp;&nbsp;` black club suit = shamrock: &clubs;
+<li><tt>\&hearts;</tt>`&nbsp;&nbsp;` black heart suit = valentine: &hearts;
+<li><tt>\&diams;</tt>`&nbsp;&nbsp;&nbsp;` black diamond suit: &diams;
+<li><tt>\&quot;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` quotation mark = APL quote: &quot;
+<li><tt>\&amp;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` ampersand: &amp;
+<li><tt>\&lt;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` less-than sign: &lt;
+<li><tt>\&gt;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` greater-than sign: &gt;
+<li><tt>\&OElig;</tt>`&nbsp;&nbsp;&nbsp;` latin capital ligature OE: &OElig;
+<li><tt>\&oelig;</tt>`&nbsp;&nbsp;&nbsp;` latin small ligature oe: &oelig;
+<li><tt>\&Scaron;</tt>`&nbsp;&nbsp;` latin capital letter S with caron: &Scaron;
+<li><tt>\&scaron;</tt>`&nbsp;&nbsp;` latin small letter s with caron: &scaron;
+<li><tt>\&Yuml;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` latin capital letter Y with diaeresis: &Yuml;
+<li><tt>\&circ;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` modifier letter circumflex accent: &circ;
+<li><tt>\&tilde;</tt>`&nbsp;&nbsp;&nbsp;` small tilde: &tilde;
+<li><tt>\&ensp;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` en space: &ensp;
+<li><tt>\&emsp;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` em space: &emsp;
+<li><tt>\&thinsp;</tt>`&nbsp;&nbsp;` thin space: &thinsp;
+<li><tt>\&zwnj;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` zero width non-joiner: &zwnj;
+<li><tt>\&zwj;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` zero width joiner: &zwj;
+<li><tt>\&lrm;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` left-to-right mark: &lrm;
+<li><tt>\&rlm;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` right-to-left mark: &rlm;
+<li><tt>\&ndash;</tt>`&nbsp;&nbsp;&nbsp;` en dash: &ndash;
+<li><tt>\&mdash;</tt>`&nbsp;&nbsp;&nbsp;` em dash: &mdash;
+<li><tt>\&lsquo;</tt>`&nbsp;&nbsp;&nbsp;` left single quotation mark: &lsquo;
+<li><tt>\&rsquo;</tt>`&nbsp;&nbsp;&nbsp;` right single quotation mark: &rsquo;
+<li><tt>\&sbquo;</tt>`&nbsp;&nbsp;&nbsp;` single low-9 quotation mark: &sbquo;
+<li><tt>\&ldquo;</tt>`&nbsp;&nbsp;&nbsp;` left double quotation mark: &ldquo;
+<li><tt>\&rdquo;</tt>`&nbsp;&nbsp;&nbsp;` right double quotation mark: &rdquo;
+<li><tt>\&bdquo;</tt>`&nbsp;&nbsp;&nbsp;` double low-9 quotation mark: &bdquo;
+<li><tt>\&dagger;</tt>`&nbsp;&nbsp;` dagger: &dagger;
+<li><tt>\&Dagger;</tt>`&nbsp;&nbsp;` double dagger: &Dagger;
+<li><tt>\&permil;</tt>`&nbsp;&nbsp;` per mille sign: &permil;
+<li><tt>\&lsaquo;</tt>`&nbsp;&nbsp;` single left-pointing angle quotation mark: &lsaquo;
+<li><tt>\&rsaquo;</tt>`&nbsp;&nbsp;` single right-pointing angle quotation mark: &rsaquo;
+<li><tt>\&euro;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;` euro sign: &euro;
+</ul>
+Doxygen extensions:
<ul>
-<li><tt>\&copy;</tt> the copyright symbol
-<li><tt>\&trade;</tt> the trade mark symbol
-<li><tt>\&reg;</tt> the registered trade mark symbol
-<li><tt>\&lt;</tt> less-than symbol
-<li><tt>\&gt;</tt> greater-than symbol
-<li><tt>\&amp;</tt> ampersand
-<li><tt>\&apos;</tt> single quotation mark (straight)
-<li><tt>\&quot;</tt> double quotation mark (straight)
-<li><tt>\&lsquo;</tt> left single quotation mark
-<li><tt>\&rsquo;</tt> right single quotation mark
-<li><tt>\&ldquo;</tt> left double quotation mark
-<li><tt>\&rdquo;</tt> right double quotation mark
-<li><tt>\&ndash;</tt> n-dash (for numeric ranges, e.g. 2&ndash;8)
-<li><tt>\&mdash;</tt> m-dash (for parenthetical punctuation &mdash; like this)
-<li><tt>\&?uml;</tt> where ? is one of {A,E,I,O,U,Y,a,e,i,o,u,y},
- writes a character with a diaeresis accent (like &auml;).
-<li><tt>\&?acute;</tt> where ? is one of {A,E,I,O,U,Y,a,e,i,o,u,y},
- writes a character with an acute accent (like &aacute;).
-<li><tt>\&?grave;</tt> where ? is one of {A,E,I,O,U,a,e,i,o,u,y},
- writes a character with a grave accent (like &agrave;).
-<li><tt>\&?circ;</tt> where ? is one of {A,E,I,O,U,a,e,i,o,u,y},
- writes a character with a circumflex accent (like &acirc;).
-<li><tt>\&?tilde;</tt> where ? is one of {A,N,O,a,n,o},
- writes a character with a tilde accent (like &atilde;).
-<li><tt>\&szlig;</tt> write a sharp s (i.e. &szlig;) to the output.
-<li><tt>\&?cedil;</tt> where ? is one of {c,C},
- writes a c-cedille (like &ccedil;).
-<li><tt>\&?ring;</tt> where ? is one of {a,A},
- writes an <tt>a</tt> with a ring (like &aring;).
-<li><tt>\&nbsp;</tt> a non breakable space.
-<li><tt>\&Gamma;</tt> Greek letter Gamma &Gamma;.
-<li><tt>\&Delta;</tt> Greek letter Delta &Delta;.
-<li><tt>\&Theta;</tt> Greek letter Theta &Theta;.
-<li><tt>\&Lambda;</tt> Greek letter Lambda &Lambda;.
-<li><tt>\&Xi;</tt> Greek letter Xi &Xi;.
-<li><tt>\&Pi;</tt> Greek letter Pi &Pi;.
-<li><tt>\&Sigma;</tt> Greek letter Sigma &Sigma;.
-<li><tt>\&Upsilon;</tt> Greek letter Upsilon &Upsilon;.
-<li><tt>\&Phi;</tt> Greek letter Phi &Phi;.
-<li><tt>\&Psi;</tt> Greek letter Psi &Psi;.
-<li><tt>\&Omega;</tt> Greek letter Omega &Omega;.
-<li><tt>\&alpha;</tt> Greek letter alpha &alpha;.
-<li><tt>\&beta;</tt> Greek letter beta &beta;.
-<li><tt>\&gamma;</tt> Greek letter gamma &gamma;.
-<li><tt>\&delta;</tt> Greek letter delta &delta;.
-<li><tt>\&epsilon;</tt> Greek letter epsilon &epsilon;.
-<li><tt>\&zeta;</tt> Greek letter zeta &zeta;.
-<li><tt>\&eta;</tt> Greek letter eta &eta;.
-<li><tt>\&theta;</tt> Greek letter theta &theta;.
-<li><tt>\&iota;</tt> Greek letter iota &iota;.
-<li><tt>\&kappa;</tt> Greek letter kappa &kappa;.
-<li><tt>\&lambda;</tt> Greek letter lambda &lambda;.
-<li><tt>\&mu;</tt> Greek letter mu &mu;.
-<li><tt>\&nu;</tt> Greek letter nu &nu;.
-<li><tt>\&xi;</tt> Greek letter xi &xi;.
-<li><tt>\&pi;</tt> Greek letter pi &pi;.
-<li><tt>\&rho;</tt> Greek letter rho &rho;.
-<li><tt>\&sigma;</tt> Greek letter sigma &sigma;.
-<li><tt>\&tau;</tt> Greek letter tau &tau;.
-<li><tt>\&upsilon;</tt> Greek letter upsilon &upsilon;.
-<li><tt>\&phi;</tt> Greek letter phi &phi;.
-<li><tt>\&chi;</tt> Greek letter chi &chi;.
-<li><tt>\&psi;</tt> Greek letter psi &psi;.
-<li><tt>\&omega;</tt> Greek letter omega &omega;.
-<li><tt>\&sigmaf;</tt> Greek final sigma &sigmaf;.
-<li><tt>\&sect;</tt> section sign &sect;.
-<li><tt>\&deg;</tt> degree &deg;.
-<li><tt>\&prime;</tt> prime &prime;.
-<li><tt>\&Prime;</tt> double prime &Prime;.
-<li><tt>\&infin;</tt> infinity &infin;.
-<li><tt>\&empty;</tt> empty set &empty;.
-<li><tt>\&plusmn;</tt> plus or minus &plusmn;.
-<li><tt>\&times;</tt> multiplication sign &times;.
-<li><tt>\&minus;</tt> minus sign &minus;.
-<li><tt>\&sdot;</tt> centered dot &sdot;.
-<li><tt>\&part;</tt> partial derivative &part;.
-<li><tt>\&nabla;</tt> nabla symbol &nabla;.
-<li><tt>\&radic;</tt> square root &radic;.
-<li><tt>\&perp;</tt> perpendicular symbol &perp;.
-<li><tt>\&sum;</tt> sum &sum;.
-<li><tt>\&int;</tt> integral &int;.
-<li><tt>\&prod;</tt> product &prod;.
-<li><tt>\&sim;</tt> similar to &sim;.
-<li><tt>\&asymp;</tt> approximately equal to &asymp;.
-<li><tt>\&ne;</tt> not equal to &ne;.
-<li><tt>\&equiv;</tt> equivalent to &equiv;.
-<li><tt>\&prop;</tt> proportional to &prop;.
-<li><tt>\&le;</tt> less than or equal to &le;.
-<li><tt>\&ge;</tt> greater than or equal to &ge;.
-<li><tt>\&larr;</tt> left arrow &larr;.
-<li><tt>\&rarr;</tt> right arrow &rarr;.
-<li><tt>\&isin;</tt> in the set &isin;.
-<li><tt>\&notin;</tt> not in the set &notin;.
-<li><tt>\&lceil;</tt> left ceiling sign &lceil;.
-<li><tt>\&rceil;</tt> right ceiling sign &rceil;.
-<li><tt>\&lfloor;</tt> left floor sign &lfloor;.
-<li><tt>\&rfloor;</tt> right floor sign &rfloor;.
+<li><tt>\&tm;</tt>`&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;` trade mark sign: &tm;
+<li><tt>\&apos;</tt>`&nbsp;&nbsp;&nbsp;` apostrophe: &apos;
</ul>
Finally, to put invisible comments inside comment blocks, HTML style