| ( ) |
Parentheses (grouping symbols) |
| [ ] |
Brackets (grouping symbols) |
| { } |
Braces (grouping symbols) |
| = |
equal |
| ≠ |
not equal to |
| ≈ |
approximately equal to |
| > |
greater than |
| < |
less than |
| ≥ |
greater than or equal to |
| ≤ |
less than or equal to |
|
|
variable or constant |
|
|
negative of
(opposite of
) |
| |
| |
absolute value of
|
|
|
reciprocal of
|
| (
,
) |
ordered pair with component
and second component
|
| π |
the irrational number pi, often approximated by 3.14 |
|
|
the principal square root of
|
|
|
the secondary square root of
|
