
positive, plus, add



angle


negative, minus, subtract



perpendicular

×

times, multiply



degree(s)

÷

divide



triangle

=

is equal to



is approximately equal to


is not equal to



is similar to

<

is less than



is parallel to

>

is greater than



infinity


is less than or equal to



pi, 3.14159


is greater than or equal to



is congruent to

( )

Parentheses (grouping symbol)



therefore

[ ]

Brackets (grouping symbol)



square root

{ }

Braces (grouping symbol)



right angle

 

Absolute Value Bars


!

factorial


is an element of



the sum of


is not an element of


e

numeric constant 2.71828


is a subset of



line AB


is not a subset



segment AB


the set of


AB

the length of









the intersection



ray AB

