📄 htmlcharacterentityreferences.dtd
字号:
rArr can be used for 'implies' as ISOtech suggests -->
<!ENTITY dArr CDATA "⇓" -- downwards double arrow, U+21D3 ISOamsa -->
<!ENTITY hArr CDATA "⇔" -- left right double arrow,
U+21D4 ISOamsa -->
<!-- Mathematical Operators -->
<!ENTITY forall CDATA "∀" -- for all, U+2200 ISOtech -->
<!ENTITY part CDATA "∂" -- partial differential, U+2202 ISOtech -->
<!ENTITY exist CDATA "∃" -- there exists, U+2203 ISOtech -->
<!ENTITY empty CDATA "∅" -- empty set = null set = diameter,
U+2205 ISOamso -->
<!ENTITY nabla CDATA "∇" -- nabla = backward difference,
U+2207 ISOtech -->
<!ENTITY isin CDATA "∈" -- element of, U+2208 ISOtech -->
<!ENTITY notin CDATA "∉" -- not an element of, U+2209 ISOtech -->
<!ENTITY ni CDATA "∋" -- contains as member, U+220B ISOtech -->
<!-- should there be a more memorable name than 'ni'? -->
<!ENTITY prod CDATA "∏" -- n-ary product = product sign,
U+220F ISOamsb -->
<!-- prod is NOT the same character as U+03A0 'greek capital letter pi' though
the same glyph might be used for both -->
<!ENTITY sum CDATA "∑" -- n-ary sumation, U+2211 ISOamsb -->
<!-- sum is NOT the same character as U+03A3 'greek capital letter sigma'
though the same glyph might be used for both -->
<!ENTITY minus CDATA "−" -- minus sign, U+2212 ISOtech -->
<!ENTITY lowast CDATA "∗" -- asterisk operator, U+2217 ISOtech -->
<!ENTITY radic CDATA "√" -- square root = radical sign,
U+221A ISOtech -->
<!ENTITY prop CDATA "∝" -- proportional to, U+221D ISOtech -->
<!ENTITY infin CDATA "∞" -- infinity, U+221E ISOtech -->
<!ENTITY ang CDATA "∠" -- angle, U+2220 ISOamso -->
<!ENTITY and CDATA "∧" -- logical and = wedge, U+2227 ISOtech -->
<!ENTITY or CDATA "∨" -- logical or = vee, U+2228 ISOtech -->
<!ENTITY cap CDATA "∩" -- intersection = cap, U+2229 ISOtech -->
<!ENTITY cup CDATA "∪" -- union = cup, U+222A ISOtech -->
<!ENTITY int CDATA "∫" -- integral, U+222B ISOtech -->
<!ENTITY there4 CDATA "∴" -- therefore, U+2234 ISOtech -->
<!ENTITY sim CDATA "∼" -- tilde operator = varies with = similar to,
U+223C ISOtech -->
<!-- tilde operator is NOT the same character as the tilde, U+007E,
although the same glyph might be used to represent both -->
<!ENTITY cong CDATA "≅" -- approximately equal to, U+2245 ISOtech -->
<!ENTITY asymp CDATA "≈" -- almost equal to = asymptotic to,
U+2248 ISOamsr -->
<!ENTITY ne CDATA "≠" -- not equal to, U+2260 ISOtech -->
<!ENTITY equiv CDATA "≡" -- identical to, U+2261 ISOtech -->
<!ENTITY le CDATA "≤" -- less-than or equal to, U+2264 ISOtech -->
<!ENTITY ge CDATA "≥" -- greater-than or equal to,
U+2265 ISOtech -->
<!ENTITY sub CDATA "⊂" -- subset of, U+2282 ISOtech -->
<!ENTITY sup CDATA "⊃" -- superset of, U+2283 ISOtech -->
<!-- note that nsup, 'not a superset of, U+2283' is not covered by the Symbol
font encoding and is not included. Should it be, for symmetry?
It is in ISOamsn -->
<!ENTITY nsub CDATA "⊄" -- not a subset of, U+2284 ISOamsn -->
<!ENTITY sube CDATA "⊆" -- subset of or equal to, U+2286 ISOtech -->
<!ENTITY supe CDATA "⊇" -- superset of or equal to,
U+2287 ISOtech -->
<!ENTITY oplus CDATA "⊕" -- circled plus = direct sum,
U+2295 ISOamsb -->
<!ENTITY otimes CDATA "⊗" -- circled times = vector product,
U+2297 ISOamsb -->
<!ENTITY perp CDATA "⊥" -- up tack = orthogonal to = perpendicular,
U+22A5 ISOtech -->
<!ENTITY sdot CDATA "⋅" -- dot operator, U+22C5 ISOamsb -->
<!-- dot operator is NOT the same character as U+00B7 middle dot -->
<!-- Miscellaneous Technical -->
<!ENTITY lceil CDATA "⌈" -- left ceiling = apl upstile,
U+2308 ISOamsc -->
<!ENTITY rceil CDATA "⌉" -- right ceiling, U+2309 ISOamsc -->
<!ENTITY lfloor CDATA "⌊" -- left floor = apl downstile,
U+230A ISOamsc -->
<!ENTITY rfloor CDATA "⌋" -- right floor, U+230B ISOamsc -->
<!ENTITY lang CDATA "〈" -- left-pointing angle bracket = bra,
U+2329 ISOtech -->
<!-- lang is NOT the same character as U+003C 'less than'
or U+2039 'single left-pointing angle quotation mark' -->
<!ENTITY rang CDATA "〉" -- right-pointing angle bracket = ket,
U+232A ISOtech -->
<!-- rang is NOT the same character as U+003E 'greater than'
or U+203A 'single right-pointing angle quotation mark' -->
<!-- Geometric Shapes -->
<!ENTITY loz CDATA "◊" -- lozenge, U+25CA ISOpub -->
<!-- Miscellaneous Symbols -->
<!ENTITY spades CDATA "♠" -- black spade suit, U+2660 ISOpub -->
<!-- black here seems to mean filled as opposed to hollow -->
<!ENTITY clubs CDATA "♣" -- black club suit = shamrock,
U+2663 ISOpub -->
<!ENTITY hearts CDATA "♥" -- black heart suit = valentine,
U+2665 ISOpub -->
<!ENTITY diams CDATA "♦" -- black diamond suit, U+2666 ISOpub -->
<!-- Special characters for HTML -->
<!-- Character entity set. Typical invocation:
<!ENTITY % HTMLspecial PUBLIC
"-//W3C//ENTITIES Special//EN//HTML">
%HTMLspecial; -->
<!-- Portions 漏 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.
-->
<!-- Relevant ISO entity set is given unless names are newly introduced.
New names (i.e., not in ISO 8879 list) do not clash with any
existing ISO 8879 entity names. ISO 10646 character numbers
are given for each character, in hex. CDATA values are decimal
conversions of the ISO 10646 values and refer to the document
character set. Names are ISO 10646 names.
-->
<!-- C0 Controls and Basic Latin -->
<!ENTITY quot CDATA """ -- quotation mark = APL quote,
U+0022 ISOnum -->
<!ENTITY amp CDATA "&" -- ampersand, U+0026 ISOnum -->
<!ENTITY lt CDATA "<" -- less-than sign, U+003C ISOnum -->
<!ENTITY gt CDATA ">" -- greater-than sign, U+003E ISOnum -->
<!-- Latin Extended-A -->
<!ENTITY OElig CDATA "Œ" -- latin capital ligature OE,
U+0152 ISOlat2 -->
<!ENTITY oelig CDATA "œ" -- latin small ligature oe, U+0153 ISOlat2 -->
<!-- ligature is a misnomer, this is a separate character in some languages -->
<!ENTITY Scaron CDATA "Š" -- latin capital letter S with caron,
U+0160 ISOlat2 -->
<!ENTITY scaron CDATA "š" -- latin small letter s with caron,
U+0161 ISOlat2 -->
<!ENTITY Yuml CDATA "Ÿ" -- latin capital letter Y with diaeresis,
U+0178 ISOlat2 -->
<!-- Spacing Modifier Letters -->
<!ENTITY circ CDATA "ˆ" -- modifier letter circumflex accent,
U+02C6 ISOpub -->
<!ENTITY tilde CDATA "˜" -- small tilde, U+02DC ISOdia -->
<!-- General Punctuation -->
<!ENTITY ensp CDATA " " -- en space, U+2002 ISOpub -->
<!ENTITY emsp CDATA " " -- em space, U+2003 ISOpub -->
<!ENTITY thinsp CDATA " " -- thin space, U+2009 ISOpub -->
<!ENTITY zwnj CDATA "‌" -- zero width non-joiner,
U+200C NEW RFC 2070 -->
<!ENTITY zwj CDATA "‍" -- zero width joiner, U+200D NEW RFC 2070 -->
<!ENTITY lrm CDATA "‎" -- left-to-right mark, U+200E NEW RFC 2070 -->
<!ENTITY rlm CDATA "‏" -- right-to-left mark, U+200F NEW RFC 2070 -->
<!ENTITY ndash CDATA "–" -- en dash, U+2013 ISOpub -->
<!ENTITY mdash CDATA "—" -- em dash, U+2014 ISOpub -->
<!ENTITY lsquo CDATA "‘" -- left single quotation mark,
U+2018 ISOnum -->
<!ENTITY rsquo CDATA "’" -- right single quotation mark,
U+2019 ISOnum -->
<!ENTITY sbquo CDATA "‚" -- single low-9 quotation mark, U+201A NEW -->
<!ENTITY ldquo CDATA "“" -- left double quotation mark,
U+201C ISOnum -->
<!ENTITY rdquo CDATA "”" -- right double quotation mark,
U+201D ISOnum -->
<!ENTITY bdquo CDATA "„" -- double low-9 quotation mark, U+201E NEW -->
<!ENTITY dagger CDATA "†" -- dagger, U+2020 ISOpub -->
<!ENTITY Dagger CDATA "‡" -- double dagger, U+2021 ISOpub -->
<!ENTITY permil CDATA "‰" -- per mille sign, U+2030 ISOtech -->
<!ENTITY lsaquo CDATA "‹" -- single left-pointing angle quotation mark,
U+2039 ISO proposed -->
<!-- lsaquo is proposed but not yet ISO standardized -->
<!ENTITY rsaquo CDATA "›" -- single right-pointing angle quotation mark,
U+203A ISO proposed -->
<!-- rsaquo is proposed but not yet ISO standardized -->
<!ENTITY euro CDATA "€" -- euro sign, U+20AC NEW -->
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