Mathematical Operator Entities

The character entity references in this section produce characters whose numeric equivalents should already be supported by conforming HTML 2.0 user agents. Thus, the character entity reference ÷ is a more convenient form than ÷ for obtaining the division sign (÷).

To support these named entities, user agents need only recognize the entity names and convert them to characters that lie within the repertoire of [ISO88591].

Additional Entity Charts
Popular Characters Alpha/Numeric Characters Symbols & Mathematical Characters	Greek Characters Special Characters For HTML

Name Entity	Number Entity	Glyph	Description
∀	∀	∀	For All
∂	∂	∂	Partial Differential
∃	∃	∃	There Exists
∅	∅	∅	Empty Set = Null Set = Diameter
∇	∇	∇	Nabla = Backward Difference
∈	∈	∈	Element Of
∉	∉	∉	Not An Element Of
&ni;	∋	∋	Contains As Member
∏	∏	∏	N-Ary Product = Product Sign
∑	∑	∑	N-Ary Sumation
−	−	−	Minus Sign
&lowast;	∗	∗	Asterisk Operator
√	√	√	Square Root = Radical Sign
&prop;	∝	∝	Proportional To
∞	∞	∞	Infinity
&ang;	∠	∠	Angle
&and;	∧	∧	Logical And = Wedge
&or;	∨	∨	Logical Or = Vee
∩	∩	∩	Intersection = Cap
∪	∪	∪	Union = Cup
∫	∫	∫	Integral
&there4;	∴	∴	Therefore
&sim;	∼	∼	Tilde Operator = Varies With = Similar To
&cong;	≅	≅	Approximately Equal To
≈	≈	≈	Almost Equal To = Asymptotic To
≠	≠	≠	Not Equal To
&equiv;	≡	≡	Identical To
≤	≤	≤	Less-Than Or Equal To
≥	≥	≥	Greater-Than Or Equal To
⊂	⊂	⊂	Subset Of
⊃	⊃	⊃	Superset Of
&nsub;	⊄	⊄	Not A Subset Of
&sube;	⊆	⊆	Subset Of Or Equal To
&supe;	⊇	⊇	Superset Of Or Equal To
&oplus;	⊕	⊕	Circled Plus = Direct Sum
&otimes;	⊗	⊗	Circled Times = Vector Product
&perp;	⊥	⊥	Up Tack = Orthogonal To = Perpendicular
⋅	⋅	⋅	Dot Operator

Additional Entity Charts
Popular Characters Alpha/Numeric Characters Symbols & Mathematical Characters	Greek Characters Special Characters For HTML

Mathematical Operator Entities

Additional Entity Charts

Additional Entity Charts