The Facts On File Algebra Handbook

CHARTS & TABLES Symbols

CHARTS & TABLES Symbols

Symbols (continued)

Circumference C

Radius r

Plane P

Squared^2

Cubed^3

To the nth power n

Square root, radical √,√–

Negative square root –√, –√–

√––1 i

Cube root √^3 ,√^3 –

Fourth root √^4 ,√^4 –

nth root √n,√n–

Least common denominator lcd

Least common multiple lcm

Grouping symbols

braces {}

brackets [ ]

parentheses ( )

Sets

Such that |

Set of elements { }

The set of all xsuch that... {x|...}

Is an element of a set ∈

or, belongs to a set

Is not an element of a set ∈/

or, does not belong to a set

Subset ⊂–

Proper subset ⊂

Empty Set ∅

or, null set

Universal set U

Union ∪

Intersection ∩

(continues)