Math Symbols

positive, plus, add perpendicular
negative, minus, subtract angle
  divide degree(s)
  times, multiply 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
or is a subset of line AB
or is not a subset segment AB
the set of AB the length of
the intersection of ray AB

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