UTF-8 数学运算符

范围：十进制 8704-8959，十六进制 2200-22FF

如果您希望在 HTML 中显示特殊字符，可以使用下表中的 HTML 实体。

如果字符没有 HTML 实体，则可以使用十进制（dec）或十六进制（hex）引用。

实例

<p>我会显示 &sum;</p>
<p>我会显示 &#8721;</p>
<p>我会显示 &#x2211;</p>

将显示为：

我会显示 ∑
我会显示 ∑
我会显示 ∑

亲自试一试

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字符 十进制 十六进制 实体 名称
∀87042200&forall;FOR ALL
∁87052201 COMPLEMENT
∂87062202&part;PARTIAL DIFFERENTIAL
∃87072203&exist;THERE EXISTS
∄87082204 THERE DOES NOT EXIST
∅87092205&empty;EMPTY SET
∆87102206 INCREMENT
∇87112207&nabla;NABLA
∈87122208&isin;ELEMENT OF
∉87132209&notin;NOT AN ELEMENT OF
∊8714220A SMALL ELEMENT OF
∋8715220B&ni;CONTAINS AS MEMBER
∌8716220C DOES NOT CONTAIN AS MEMBER
∍8717220D SMALL CONTAINS AS MEMBER
∎8718220E END OF PROOF
∏8719220F&prod;N-ARY PRODUCT
∐87202210 N-ARY COPRODUCT
∑87212211&sum;N-ARY SUMMATION
−87222212&minus;MINUS SIGN
∓87232213 MINUS-OR-PLUS SIGN
∔87242214 DOT PLUS
∕87252215 DIVISION SLASH
∖87262216 SET MINUS
∗87272217&lowast;ASTERISK OPERATOR
∘87282218 RING OPERATOR
∙87292219 BULLET OPERATOR
√8730221A&radic;SQUARE ROOT
∛8731221B CUBE ROOT
∜8732221C FOURTH ROOT
∝8733221D&prop;PROPORTIONAL TO
∞8734221E&infin;INFINITY
∟8735221F RIGHT ANGLE
∠87362220&ang;ANGLE
∡87372221 MEASURED ANGLE
∢87382222 SPHERICAL ANGLE
∣87392223 DIVIDES
∤87402224 DOES NOT DIVIDE
∥87412225 PARALLEL TO
∦87422226 NOT PARALLEL TO
∧87432227&and;LOGICAL AND
∨87442228&or;LOGICAL OR
∩87452229&cap;INTERSECTION
∪8746222A&cup;UNION
∫8747222B&int;INTEGRAL
∬8748222C DOUBLE INTEGRAL
∭8749222D TRIPLE INTEGRAL
∮8750222E CONTOUR INTEGRAL
∯8751222F SURFACE INTEGRAL
∰87522230 VOLUME INTEGRAL
∱87532231 CLOCKWISE INTEGRAL
∲87542232 CLOCKWISE CONTOUR INTEGRAL
∳87552233 ANTICLOCKWISE CONTOUR INTEGRAL
∴87562234&there4;THEREFORE
∵87572235 BECAUSE
∶87582236 RATIO
∷87592237 PROPORTION
∸87602238 DOT MINUS
∹87612239 EXCESS
∺8762223A GEOMETRIC PROPORTION
∻8763223B HOMOTHETIC
∼8764223C&sim;TILDE OPERATOR
∽8765223D REVERSED TILDE
∾8766223E INVERTED LAZY S
∿8767223F SINE WAVE
≀87682240 WREATH PRODUCT
≁87692241 NOT TILDE
≂87702242 MINUS TILDE
≃87712243 ASYMPTOTICALLY EQUAL TO
≄87722244 NOT ASYMPTOTICALLY EQUAL TO
≅87732245&cong;APPROXIMATELY EQUAL TO
≆87742246 APPROXIMATELY BUT NOT ACTUALLY EQUAL TO
≇87752247 NEITHER APPROXIMATELY NOR ACTUALLY EQUAL TO
≈87762248&asymp;ALMOST EQUAL TO
≉87772249 NOT ALMOST EQUAL TO
≊8778224A ALMOST EQUAL OR EQUAL TO
≋8779224B TRIPLE TILDE
≌8780224C ALL EQUAL TO
≍8781224D EQUIVALENT TO
≎8782224E GEOMETRICALLY EQUIVALENT TO
≏8783224F DIFFERENCE BETWEEN
≐87842250 APPROACHES THE LIMIT
≑87852251 GEOMETRICALLY EQUAL TO
≒87862252 APPROXIMATELY EQUAL TO OR THE IMAGE OF
≓87872253 IMAGE OF OR APPROXIMATELY EQUAL TO
≔87882254 COLON EQUALS
≕87892255 EQUALS COLON
≖87902256 RING IN EQUAL TO
≗87912257 RING EQUAL TO
≘87922258 CORRESPONDS TO
≙87932259 ESTIMATES
≚8794225A EQUIANGULAR TO
≛8795225B STAR EQUALS
≜8796225C DELTA EQUAL TO
≝8797225D EQUAL TO BY DEFINITION
≞8798225E MEASURED BY
≟8799225F QUESTIONED EQUAL TO
≠88002260&ne;NOT EQUAL TO
≡88012261&equiv;IDENTICAL TO
≢88022262 NOT IDENTICAL TO
≣88032263 STRICTLY EQUIVALENT TO
≤88042264&le;LESS-THAN OR EQUAL TO
≥88052265&ge;GREATER-THAN OR EQUAL TO
≦88062266 LESS-THAN OVER EQUAL TO
≧88072267 GREATER-THAN OVER EQUAL TO
≨88082268 LESS-THAN BUT NOT EQUAL TO
≩88092269 GREATER-THAN BUT NOT EQUAL TO
≪8810226A MUCH LESS-THAN
≫8811226B MUCH GREATER-THAN
≬8812226C BETWEEN
≭8813226D NOT EQUIVALENT TO
≮8814226E NOT LESS-THAN
≯8815226F NOT GREATER-THAN
≰88162270 NEITHER LESS-THAN NOR EQUAL TO
≱88172271 NEITHER GREATER-THAN NOR EQUAL TO
≲88182272 LESS-THAN OR EQUIVALENT TO
≳88192273 GREATER-THAN OR EQUIVALENT TO
≴88202274 NEITHER LESS-THAN NOR EQUIVALENT TO
≵88212275 NEITHER GREATER-THAN NOR EQUIVALENT TO
≶88222276 LESS-THAN OR GREATER-THAN
≷88232277 GREATER-THAN OR LESS-THAN
≸88242278 NEITHER LESS-THAN NOR GREATER-THAN
≹88252279 NEITHER GREATER-THAN NOR LESS-THAN
≺8826227A PRECEDES
≻8827227B SUCCEEDS
≼8828227C PRECEDES OR EQUAL TO
≽8829227D SUCCEEDS OR EQUAL TO
≾8830227E PRECEDES OR EQUIVALENT TO
≿8831227F SUCCEEDS OR EQUIVALENT TO
⊀88322280 DOES NOT PRECEDE
⊁88332281 DOES NOT SUCCEED
⊂88342282&sub;SUBSET OF
⊃88352283&sup;SUPERSET OF
⊄88362284&nsub;NOT A SUBSET OF
⊅88372285 NOT A SUPERSET OF
⊆88382286&sube;SUBSET OF OR EQUAL TO
⊇88392287&supe;SUPERSET OF OR EQUAL TO
⊈88402288 NEITHER A SUBSET OF NOR EQUAL TO
⊉88412289 NEITHER A SUPERSET OF NOR EQUAL TO
⊊8842228A SUBSET OF WITH NOT EQUAL TO
⊋8843228B SUPERSET OF WITH NOT EQUAL TO
⊌8844228C MULTISET
⊍8845228D MULTISET MULTIPLICATION
⊎8846228E MULTISET UNION
⊏8847228F SQUARE IMAGE OF
⊐88482290 SQUARE ORIGINAL OF
⊑88492291 SQUARE IMAGE OF OR EQUAL TO
⊒88502292 SQUARE ORIGINAL OF OR EQUAL TO
⊓88512293 SQUARE CAP
⊔88522294 SQUARE CUP
⊕88532295&oplus;CIRCLED PLUS
⊖88542296 CIRCLED MINUS
⊗88552297&otimes;CIRCLED TIMES
⊘88562298 CIRCLED DIVISION SLASH
⊙88572299 CIRCLED DOT OPERATOR
⊚8858229A CIRCLED RING OPERATOR
⊛8859229B CIRCLED ASTERISK OPERATOR
⊜8860229C CIRCLED EQUALS
⊝8861229D CIRCLED DASH
⊞8862229E SQUARED PLUS
⊟8863229F SQUARED MINUS
⊠886422A0 SQUARED TIMES
⊡886522A1 SQUARED DOT OPERATOR
⊢886622A2 RIGHT TACK
⊣886722A3 LEFT TACK
⊤886822A4 DOWN TACK
⊥886922A5&perp;UP TACK
⊦887022A6 ASSERTION
⊧887122A7 MODELS
⊨887222A8 TRUE
⊩887322A9 FORCES
⊪887422AA TRIPLE VERTICAL BAR RIGHT TURNSTILE
⊫887522AB DOUBLE VERTICAL BAR DOUBLE RIGHT TURNSTILE
⊬887622AC DOES NOT PROVE
⊭887722AD NOT TRUE
⊮887822AE DOES NOT FORCE
⊯887922AF NEGATED DOUBLE VERTICAL BAR DOUBLE RIGHT TURNSTILE
⊰888022B0 PRECEDES UNDER RELATION
⊱888122B1 SUCCEEDS UNDER RELATION
⊲888222B2 NORMAL SUBGROUP OF
⊳888322B3 CONTAINS AS NORMAL SUBGROUP
⊴888422B4 NORMAL SUBGROUP OF OR EQUAL TO
⊵888522B5 CONTAINS AS NORMAL SUBGROUP OR EQUAL TO
⊶888622B6 ORIGINAL OF
⊷888722B7 IMAGE OF
⊸888822B8 MULTIMAP
⊹888922B9 HERMITIAN CONJUGATE MATRIX
⊺889022BA INTERCALATE
⊻889122BB XOR
⊼889222BC NAND
⊽889322BD NOR
⊾889422BE RIGHT ANGLE WITH ARC
⊿889522BF RIGHT TRIANGLE
⋀889622C0 N-ARY LOGICAL AND
⋁889722C1 N-ARY LOGICAL OR
⋂889822C2 N-ARY INTERSECTION
⋃889922C3 N-ARY UNION
⋄890022C4 DIAMOND OPERATOR
⋅890122C5&sdot;DOT OPERATOR
⋆890222C6 STAR OPERATOR
⋇890322C7 DIVISION TIMES
⋈890422C8 BOWTIE
⋉890522C9 LEFT NORMAL FACTOR SEMIDIRECT PRODUCT
⋊890622CA RIGHT NORMAL FACTOR SEMIDIRECT PRODUCT
⋋890722CB LEFT SEMIDIRECT PRODUCT
⋌890822CC RIGHT SEMIDIRECT PRODUCT
⋍890922CD REVERSED TILDE EQUALS
⋎891022CE CURLY LOGICAL OR
⋏891122CF CURLY LOGICAL AND
⋐891222D0 DOUBLE SUBSET
⋑891322D1 DOUBLE SUPERSET
⋒891422D2 DOUBLE INTERSECTION
⋓891522D3 DOUBLE UNION
⋔891622D4 PITCHFORK
⋕891722D5 EQUAL AND PARALLEL TO
⋖891822D6 LESS-THAN WITH DOT
⋗891922D7 GREATER-THAN WITH DOT
⋘892022D8 VERY MUCH LESS-THAN
⋙892122D9 VERY MUCH GREATER-THAN
⋚892222DA LESS-THAN EQUAL TO OR GREATER-THAN
⋛892322DB GREATER-THAN EQUAL TO OR LESS-THAN
⋜892422DC EQUAL TO OR LESS-THAN
⋝892522DD EQUAL TO OR GREATER-THAN
⋞892622DE EQUAL TO OR PRECEDES
⋟892722DF EQUAL TO OR SUCCEEDS
⋠892822E0 DOES NOT PRECEDE OR EQUAL
⋡892922E1 DOES NOT SUCCEED OR EQUAL
⋢893022E2 NOT SQUARE IMAGE OF OR EQUAL TO
⋣893122E3 NOT SQUARE ORIGINAL OF OR EQUAL TO
⋤893222E4 SQUARE IMAGE OF OR NOT EQUAL TO
⋥893322E5 SQUARE ORIGINAL OF OR NOT EQUAL TO
⋦893422E6 LESS-THAN BUT NOT EQUIVALENT TO
⋧893522E7 GREATER-THAN BUT NOT EQUIVALENT TO
⋨893622E8 PRECEDES BUT NOT EQUIVALENT TO
⋩893722E9 SUCCEEDS BUT NOT EQUIVALENT TO
⋪893822EA NOT NORMAL SUBGROUP OF
⋫893922EB DOES NOT CONTAIN AS NORMAL SUBGROUP
⋬894022EC NOT NORMAL SUBGROUP OF OR EQUAL TO
⋭894122ED DOES NOT CONTAIN AS NORMAL SUBGROUP OR EQUAL
⋮894222EE VERTICAL ELLIPSIS
⋯894322EF MIDLINE HORIZONTAL ELLIPSIS
⋰894422F0 UP RIGHT DIAGONAL ELLIPSIS
⋱894522F1 DOWN RIGHT DIAGONAL ELLIPSIS
⋲894622F2 ELEMENT OF WITH LONG HORIZONTAL STROKE
⋳894722F3 ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋴894822F4 SMALL ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋵894922F5 ELEMENT OF WITH DOT ABOVE
⋶895022F6 ELEMENT OF WITH OVERBAR
⋷895122F7 SMALL ELEMENT OF WITH OVERBAR
⋸895222F8 ELEMENT OF WITH UNDERBAR
⋹895322F9 ELEMENT OF WITH TWO HORIZONTAL STROKES
⋺895422FA CONTAINS WITH LONG HORIZONTAL STROKE
⋻895522FB CONTAINS WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋼895622FC SMALL CONTAINS WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋽895722FD CONTAINS WITH OVERBAR
⋾895822FE SMALL CONTAINS WITH OVERBAR
⋿895922FF Z NOTATION BAG MEMBERSHIP
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