Terminology: Mathematical symbols

Summary of the common mathematical symbols, including each symbol’s name, visual and description:

SymbolSymbol nameSymbol design description

-

Minus 

+

Plus 

×

MultiplySimilar to lowercase letter "x" in sans serif.

÷

Obelus, DivideCombined colon and minus symbols.

=

EqualTwo parallel horizontal lines.

Not equalTwo parallel horizontal lines with a diagonal line through both.

Approximately equalTwo wavy parallel lines.

±

Plus or minus 

<

Greater than 

>

Less than 

Less than or equal to 

Greater than or equal to 

Infinity 

·

Middot or period centredTraditional English decimal point which is raised.

%

PercentPer hundred.

PermillePer thousand.

Permyriad Also known as a basis point.

FractionOne eighth.

¼

Fraction One quarter.

FractionThree eighths.

½

Fraction One half.

FractionFive eighths.

¾

Fraction Three quarters.

¾

Fraction Three quarters.

FractionSeven eighths.

FractionSlash.

Sum  

Product 

Integral 

Partial differential 

Increment 

Square root 

Intersection 

ƒ

Function 

π

Pi 

DiameterBar extending diagonally through a circle.

Weierstrass' elliptic functionStylised letter "p".