My Tech Notes: Special HTML codes for math symbols

Display	Friendly Code	Numerical Code	Hex Code	Description
−		−	−	Minus Sign
+	+	+	+	Plus Sign
±	±	±	±	Plus or Minus Sign
×	×	×	×	Multiplication Sign
÷	÷	÷	÷	Division Sign
%	%	%	%	Percent Sign
‰			‰	Per Mille Sign (per thousand)
=	=	=	=	Equal Sign
≠		≠	≠	Not Equal To Sign
≈		≈	≈	Approximately Equal Sign
≡		≡	≡	Identical To Sign
<	<	<	<	Less Than Sign
>	>	>	>	Greater Than Sign
≤		≤	≤	Less Than or Equal To Sign
≥		≥	≥	Greater Than or Equal To Sign
∞		∞	∞	Infinity Sign
⅛		⅛	⅛	One Eighth Fraction
¼	¼	¼	¼	One Quarter Fraction
⅜		⅜	⅜	Three Eighths Fraction
½	½	½	½	One Half Fraction
⅝		⅝	⅝	Five Eighths Fraction
¾	¾	¾	¾	Three Quarters Fraction
⅞		⅞	⅞	Seven Eighths Fraction
∫		∫	∫	Integral Sign
∂		∂	∂	Partial Differential Sign
∆		∆	∆	Increment Sign
∏		∏	∏	N-ary Product Sign
∑		∑	∑	N-ary Sum Sign
√		√	√	Square Root Sign
∟		∟	∟	Right Angle Sign
∩		∩	∩	Intersection Sign
∙		∙	∙	Bullet Operator
ƒ				Function Sign
⁄		⁄	⁄	Fraction Slash

My Tech Notes