Section C.11. Mathematical Operators

C.11. Mathematical Operators

Decimal	Hex	Entity	Symbol	Description
∀	∀	∀		For all
∂	∂	∂		Partial differential
∃	∃	∃		There exists
∅	∅	∅		Empty set, null set, diameter
∇	∇	∇		Nabla, backward difference
∈	∈	∈		Element of
&#8713	∉	∉		Not an element of
∋	∋	∋		Contains as a member
∏	∏	∏		N-ary product, product sign
∑	∑	∑	S	N-ary summation
−	−	−	-	Minus sign
∗	∗	∗	*	Asterisk operator
√	√	√		Square root, radical sign
∝	∝	∝		Proportional
∞	∞	∞		Infinity symbol
∠	∠	∠		Angle
∧	∧	∧		Logical and, wedge
∨	∨	∨		Logical or, vee
∩	∩	∩		Intersection, cap
∪	∪	∪		Union, cup
∫	∫	∫		Integral
∴	∴	∴		Therefore
∼	∼	∼	~	Tilde operator, varies with, similar to
≅	≅	≅		Approximately equal to
≈	≈	≈		Almost equal to, asymptotic to
≠	≠	≠		Not equal to
≡	≡	≡		Identical to
≤	≤	≤		Less than or equal to
≥	≥	≥		Greater than or equal to
⊂	⊂	⊂		Subset of
⊃	⊃	⊃		Superset of
⊄	⊄	⊄		Not a subset of
⊆	⊆	&sube		Subset of or equal to
⊇	⊇	&supe		Superset of or equal to
⊕	⊕	⊕		Circled plus, direct sum
⊗	⊗	⊗		Circled times, vector product
⊥	⊥	⊥		Up tack, orthogonal to, perpendicular
⋅	⋅	⋅	·	Dot operator