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The list below has some of the most common symbols in mathematics. However, these symbols can have other meanings in different contexts other than math.
SymbolNameRead AsMeaning=Equalis equal toIf x=y, x and y represent the same value ...≡Definitionis defined asIf x≡y, x is defined as another name of ...≈Approximately equalis approximately equal toIf x≈y, x and y are almost equal.≠Inequationdoes not equal, is not equal toIf x≠y, x and y do not represent the same ...A set is a collection of things, usually numbers. We can list each element (or "member") of a set inside curly brackets like this: Common Symbols Used in Set Theory. Symbols save time and space when writing. Here are the most common set symbols. In the examples C = {1, 2, 3, 4} and D = {3, 4, 5} Symbols in Algebra Symbols in Mathematics Sets Index
SymbolMeaningExample{ }Set: a collection of elements{1, 2, 3, 4}A ∪ BUnion: in A or B (or both)C ∪ D = {1, 2, 3, 4, 5}A ∩ BIntersection: in both A and BC ∩ D = {3, 4}A ⊆ BSubset: every element of A is in B.{3, 4, 5} ⊆ DList of all math symbols and meaning - equality, inequality, parentheses, plus, minus, times, division, power, square root, percent, per mille,...
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula.
Comprehensive collection of 225+ math symbols used in algebra, categorized by subject and type into tables along with each symbol's name, usage and example.
A comprehensive collection of 200+ symbols used in the various subfields of mathematics, as categorized by their functions, types and subjects.
The mean (average) of a set of data is calculated by adding all numbers in the data set and then dividing by the number of values in the set. When the data set is ordered from least to greatest, the median is the middle value.
