UTF-8 数学运算符
- 范围：十进制 8704-8959，十六进制 2200-22FF
  - 实例

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 ∑

[warning] 较老的浏览器可能不支持下表中的所有 HTML5 实体。 Chrome 和 Opera 的支持是很好的，而 IE 11+ 和 Firefox 35+ 支持所有实体。

字符	十进制	十六进制	实体	名称
∀	8704	2200	`∀`	FOR ALL
∁	8705	2201		COMPLEMENT
∂	8706	2202	`∂`	PARTIAL DIFFERENTIAL
∃	8707	2203	`∃`	THERE EXISTS
∄	8708	2204		THERE DOES NOT EXIST
∅	8709	2205	`∅`	EMPTY SET
∆	8710	2206		INCREMENT
∇	8711	2207	`∇`	NABLA
∈	8712	2208	`∈`	ELEMENT OF
∉	8713	2209	`∉`	NOT AN ELEMENT OF
∊	8714	220A		SMALL ELEMENT OF
∋	8715	220B	`&ni;`	CONTAINS AS MEMBER
∌	8716	220C		DOES NOT CONTAIN AS MEMBER
∍	8717	220D		SMALL CONTAINS AS MEMBER
∎	8718	220E		END OF PROOF
∏	8719	220F	`∏`	N-ARY PRODUCT
∐	8720	2210		N-ARY COPRODUCT
∑	8721	2211	`∑`	N-ARY SUMMATION
−	8722	2212	`−`	MINUS SIGN
∓	8723	2213		MINUS-OR-PLUS SIGN
∔	8724	2214		DOT PLUS
∕	8725	2215		DIVISION SLASH
∖	8726	2216		SET MINUS
∗	8727	2217	`&lowast;`	ASTERISK OPERATOR
∘	8728	2218		RING OPERATOR
∙	8729	2219		BULLET OPERATOR
√	8730	221A	`√`	SQUARE ROOT
∛	8731	221B		CUBE ROOT
∜	8732	221C		FOURTH ROOT
∝	8733	221D	`&prop;`	PROPORTIONAL TO
∞	8734	221E	`∞`	INFINITY
∟	8735	221F		RIGHT ANGLE
∠	8736	2220	`&ang;`	ANGLE
∡	8737	2221		MEASURED ANGLE
∢	8738	2222		SPHERICAL ANGLE
∣	8739	2223		DIVIDES
∤	8740	2224		DOES NOT DIVIDE
∥	8741	2225		PARALLEL TO
∦	8742	2226		NOT PARALLEL TO
∧	8743	2227	`&and;`	LOGICAL AND
∨	8744	2228	`&or;`	LOGICAL OR
∩	8745	2229	`∩`	INTERSECTION
∪	8746	222A	`∪`	UNION
∫	8747	222B	`∫`	INTEGRAL
∬	8748	222C		DOUBLE INTEGRAL
∭	8749	222D		TRIPLE INTEGRAL
∮	8750	222E		CONTOUR INTEGRAL
∯	8751	222F		SURFACE INTEGRAL
∰	8752	2230		VOLUME INTEGRAL
∱	8753	2231		CLOCKWISE INTEGRAL
∲	8754	2232		CLOCKWISE CONTOUR INTEGRAL
∳	8755	2233		ANTICLOCKWISE CONTOUR INTEGRAL
∴	8756	2234	`&there4;`	THEREFORE
∵	8757	2235		BECAUSE
∶	8758	2236		RATIO
∷	8759	2237		PROPORTION
∸	8760	2238		DOT MINUS
∹	8761	2239		EXCESS
∺	8762	223A		GEOMETRIC PROPORTION
∻	8763	223B		HOMOTHETIC
∼	8764	223C	`&sim;`	TILDE OPERATOR
∽	8765	223D		REVERSED TILDE
∾	8766	223E		INVERTED LAZY S
∿	8767	223F		SINE WAVE
≀	8768	2240		WREATH PRODUCT
≁	8769	2241		NOT TILDE
≂	8770	2242		MINUS TILDE
≃	8771	2243		ASYMPTOTICALLY EQUAL TO
≄	8772	2244		NOT ASYMPTOTICALLY EQUAL TO
≅	8773	2245	`&cong;`	APPROXIMATELY EQUAL TO
≆	8774	2246		APPROXIMATELY BUT NOT ACTUALLY EQUAL TO
≇	8775	2247		NEITHER APPROXIMATELY NOR ACTUALLY EQUAL TO
≈	8776	2248	`≈`	ALMOST EQUAL TO
≉	8777	2249		NOT ALMOST EQUAL TO
≊	8778	224A		ALMOST EQUAL OR EQUAL TO
≋	8779	224B		TRIPLE TILDE
≌	8780	224C		ALL EQUAL TO
≍	8781	224D		EQUIVALENT TO
≎	8782	224E		GEOMETRICALLY EQUIVALENT TO
≏	8783	224F		DIFFERENCE BETWEEN
≐	8784	2250		APPROACHES THE LIMIT
≑	8785	2251		GEOMETRICALLY EQUAL TO
≒	8786	2252		APPROXIMATELY EQUAL TO OR THE IMAGE OF
≓	8787	2253		IMAGE OF OR APPROXIMATELY EQUAL TO
≔	8788	2254		COLON EQUALS
≕	8789	2255		EQUALS COLON
≖	8790	2256		RING IN EQUAL TO
≗	8791	2257		RING EQUAL TO
≘	8792	2258		CORRESPONDS TO
≙	8793	2259		ESTIMATES
≚	8794	225A		EQUIANGULAR TO
≛	8795	225B		STAR EQUALS
≜	8796	225C		DELTA EQUAL TO
≝	8797	225D		EQUAL TO BY DEFINITION
≞	8798	225E		MEASURED BY
≟	8799	225F		QUESTIONED EQUAL TO
≠	8800	2260	`≠`	NOT EQUAL TO
≡	8801	2261	`&equiv;`	IDENTICAL TO
≢	8802	2262		NOT IDENTICAL TO
≣	8803	2263		STRICTLY EQUIVALENT TO
≤	8804	2264	`≤`	LESS-THAN OR EQUAL TO
≥	8805	2265	`≥`	GREATER-THAN OR EQUAL TO
≦	8806	2266		LESS-THAN OVER EQUAL TO
≧	8807	2267		GREATER-THAN OVER EQUAL TO
≨	8808	2268		LESS-THAN BUT NOT EQUAL TO
≩	8809	2269		GREATER-THAN BUT NOT EQUAL TO
≪	8810	226A		MUCH LESS-THAN
≫	8811	226B		MUCH GREATER-THAN
≬	8812	226C		BETWEEN
≭	8813	226D		NOT EQUIVALENT TO
≮	8814	226E		NOT LESS-THAN
≯	8815	226F		NOT GREATER-THAN
≰	8816	2270		NEITHER LESS-THAN NOR EQUAL TO
≱	8817	2271		NEITHER GREATER-THAN NOR EQUAL TO
≲	8818	2272		LESS-THAN OR EQUIVALENT TO
≳	8819	2273		GREATER-THAN OR EQUIVALENT TO
≴	8820	2274		NEITHER LESS-THAN NOR EQUIVALENT TO
≵	8821	2275		NEITHER GREATER-THAN NOR EQUIVALENT TO
≶	8822	2276		LESS-THAN OR GREATER-THAN
≷	8823	2277		GREATER-THAN OR LESS-THAN
≸	8824	2278		NEITHER LESS-THAN NOR GREATER-THAN
≹	8825	2279		NEITHER GREATER-THAN NOR LESS-THAN
≺	8826	227A		PRECEDES
≻	8827	227B		SUCCEEDS
≼	8828	227C		PRECEDES OR EQUAL TO
≽	8829	227D		SUCCEEDS OR EQUAL TO
≾	8830	227E		PRECEDES OR EQUIVALENT TO
≿	8831	227F		SUCCEEDS OR EQUIVALENT TO
⊀	8832	2280		DOES NOT PRECEDE
⊁	8833	2281		DOES NOT SUCCEED
⊂	8834	2282	`⊂`	SUBSET OF
⊃	8835	2283	`⊃`	SUPERSET OF
⊄	8836	2284	`&nsub;`	NOT A SUBSET OF
⊅	8837	2285		NOT A SUPERSET OF
⊆	8838	2286	`&sube;`	SUBSET OF OR EQUAL TO
⊇	8839	2287	`&supe;`	SUPERSET OF OR EQUAL TO
⊈	8840	2288		NEITHER A SUBSET OF NOR EQUAL TO
⊉	8841	2289		NEITHER A SUPERSET OF NOR EQUAL TO
⊊	8842	228A		SUBSET OF WITH NOT EQUAL TO
⊋	8843	228B		SUPERSET OF WITH NOT EQUAL TO
⊌	8844	228C		MULTISET
⊍	8845	228D		MULTISET MULTIPLICATION
⊎	8846	228E		MULTISET UNION
⊏	8847	228F		SQUARE IMAGE OF
⊐	8848	2290		SQUARE ORIGINAL OF
⊑	8849	2291		SQUARE IMAGE OF OR EQUAL TO
⊒	8850	2292		SQUARE ORIGINAL OF OR EQUAL TO
⊓	8851	2293		SQUARE CAP
⊔	8852	2294		SQUARE CUP
⊕	8853	2295	`&oplus;`	CIRCLED PLUS
⊖	8854	2296		CIRCLED MINUS
⊗	8855	2297	`&otimes;`	CIRCLED TIMES
⊘	8856	2298		CIRCLED DIVISION SLASH
⊙	8857	2299		CIRCLED DOT OPERATOR
⊚	8858	229A		CIRCLED RING OPERATOR
⊛	8859	229B		CIRCLED ASTERISK OPERATOR
⊜	8860	229C		CIRCLED EQUALS
⊝	8861	229D		CIRCLED DASH
⊞	8862	229E		SQUARED PLUS
⊟	8863	229F		SQUARED MINUS
⊠	8864	22A0		SQUARED TIMES
⊡	8865	22A1		SQUARED DOT OPERATOR
⊢	8866	22A2		RIGHT TACK
⊣	8867	22A3		LEFT TACK
⊤	8868	22A4		DOWN TACK
⊥	8869	22A5	`&perp;`	UP TACK
⊦	8870	22A6		ASSERTION
⊧	8871	22A7		MODELS
⊨	8872	22A8		TRUE
⊩	8873	22A9		FORCES
⊪	8874	22AA		TRIPLE VERTICAL BAR RIGHT TURNSTILE
⊫	8875	22AB		DOUBLE VERTICAL BAR DOUBLE RIGHT TURNSTILE
⊬	8876	22AC		DOES NOT PROVE
⊭	8877	22AD		NOT TRUE
⊮	8878	22AE		DOES NOT FORCE
⊯	8879	22AF		NEGATED DOUBLE VERTICAL BAR DOUBLE RIGHT TURNSTILE
⊰	8880	22B0		PRECEDES UNDER RELATION
⊱	8881	22B1		SUCCEEDS UNDER RELATION
⊲	8882	22B2		NORMAL SUBGROUP OF
⊳	8883	22B3		CONTAINS AS NORMAL SUBGROUP
⊴	8884	22B4		NORMAL SUBGROUP OF OR EQUAL TO
⊵	8885	22B5		CONTAINS AS NORMAL SUBGROUP OR EQUAL TO
⊶	8886	22B6		ORIGINAL OF
⊷	8887	22B7		IMAGE OF
⊸	8888	22B8		MULTIMAP
⊹	8889	22B9		HERMITIAN CONJUGATE MATRIX
⊺	8890	22BA		INTERCALATE
⊻	8891	22BB		XOR
⊼	8892	22BC		NAND
⊽	8893	22BD		NOR
⊾	8894	22BE		RIGHT ANGLE WITH ARC
⊿	8895	22BF		RIGHT TRIANGLE
⋀	8896	22C0		N-ARY LOGICAL AND
⋁	8897	22C1		N-ARY LOGICAL OR
⋂	8898	22C2		N-ARY INTERSECTION
⋃	8899	22C3		N-ARY UNION
⋄	8900	22C4		DIAMOND OPERATOR
⋅	8901	22C5	`⋅`	DOT OPERATOR
⋆	8902	22C6		STAR OPERATOR
⋇	8903	22C7		DIVISION TIMES
⋈	8904	22C8		BOWTIE
⋉	8905	22C9		LEFT NORMAL FACTOR SEMIDIRECT PRODUCT
⋊	8906	22CA		RIGHT NORMAL FACTOR SEMIDIRECT PRODUCT
⋋	8907	22CB		LEFT SEMIDIRECT PRODUCT
⋌	8908	22CC		RIGHT SEMIDIRECT PRODUCT
⋍	8909	22CD		REVERSED TILDE EQUALS
⋎	8910	22CE		CURLY LOGICAL OR
⋏	8911	22CF		CURLY LOGICAL AND
⋐	8912	22D0		DOUBLE SUBSET
⋑	8913	22D1		DOUBLE SUPERSET
⋒	8914	22D2		DOUBLE INTERSECTION
⋓	8915	22D3		DOUBLE UNION
⋔	8916	22D4		PITCHFORK
⋕	8917	22D5		EQUAL AND PARALLEL TO
⋖	8918	22D6		LESS-THAN WITH DOT
⋗	8919	22D7		GREATER-THAN WITH DOT
⋘	8920	22D8		VERY MUCH LESS-THAN
⋙	8921	22D9		VERY MUCH GREATER-THAN
⋚	8922	22DA		LESS-THAN EQUAL TO OR GREATER-THAN
⋛	8923	22DB		GREATER-THAN EQUAL TO OR LESS-THAN
⋜	8924	22DC		EQUAL TO OR LESS-THAN
⋝	8925	22DD		EQUAL TO OR GREATER-THAN
⋞	8926	22DE		EQUAL TO OR PRECEDES
⋟	8927	22DF		EQUAL TO OR SUCCEEDS
⋠	8928	22E0		DOES NOT PRECEDE OR EQUAL
⋡	8929	22E1		DOES NOT SUCCEED OR EQUAL
⋢	8930	22E2		NOT SQUARE IMAGE OF OR EQUAL TO
⋣	8931	22E3		NOT SQUARE ORIGINAL OF OR EQUAL TO
⋤	8932	22E4		SQUARE IMAGE OF OR NOT EQUAL TO
⋥	8933	22E5		SQUARE ORIGINAL OF OR NOT EQUAL TO
⋦	8934	22E6		LESS-THAN BUT NOT EQUIVALENT TO
⋧	8935	22E7		GREATER-THAN BUT NOT EQUIVALENT TO
⋨	8936	22E8		PRECEDES BUT NOT EQUIVALENT TO
⋩	8937	22E9		SUCCEEDS BUT NOT EQUIVALENT TO
⋪	8938	22EA		NOT NORMAL SUBGROUP OF
⋫	8939	22EB		DOES NOT CONTAIN AS NORMAL SUBGROUP
⋬	8940	22EC		NOT NORMAL SUBGROUP OF OR EQUAL TO
⋭	8941	22ED		DOES NOT CONTAIN AS NORMAL SUBGROUP OR EQUAL
⋮	8942	22EE		VERTICAL ELLIPSIS
⋯	8943	22EF		MIDLINE HORIZONTAL ELLIPSIS
⋰	8944	22F0		UP RIGHT DIAGONAL ELLIPSIS
⋱	8945	22F1		DOWN RIGHT DIAGONAL ELLIPSIS
⋲	8946	22F2		ELEMENT OF WITH LONG HORIZONTAL STROKE
⋳	8947	22F3		ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋴	8948	22F4		SMALL ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋵	8949	22F5		ELEMENT OF WITH DOT ABOVE
⋶	8950	22F6		ELEMENT OF WITH OVERBAR
⋷	8951	22F7		SMALL ELEMENT OF WITH OVERBAR
⋸	8952	22F8		ELEMENT OF WITH UNDERBAR
⋹	8953	22F9		ELEMENT OF WITH TWO HORIZONTAL STROKES
⋺	8954	22FA		CONTAINS WITH LONG HORIZONTAL STROKE
⋻	8955	22FB		CONTAINS WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋼	8956	22FC		SMALL CONTAINS WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
⋽	8957	22FD		CONTAINS WITH OVERBAR
⋾	8958	22FE		SMALL CONTAINS WITH OVERBAR
⋿	8959	22FF		Z NOTATION BAG MEMBERSHIP