Terminology: Mathematical symbols

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".