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Learn about the origin, meaning and variations of the equals sign (=), the mathematical symbol for equality. Find out how it is used in different languages and contexts, such as definitions, conditional statements, assignments and comparisons.
A comprehensive table of symbols used in logic, with their names, readings, categories, explanations, and examples. Includes basic logic symbols, such as ⇒, ⇔, ¬, ∧, ∨, and ⊕, as well as symbols for propositional logic, Boolean algebra, and other fields.
The triple bar or tribar, ≡, is a symbol with multiple meanings in mathematics, logic, science, and design. Learn how it is used in different contexts, such as congruence, modular arithmetic, botanical nomenclature, and hamburger icon.
For most symbols, the entry name is the corresponding Unicode symbol. So, for searching the entry of a symbol, it suffices to type or copy the Unicode symbol into the search textbox. Similarly, when possible, the entry name of a symbol is also an anchor, which allows linking easily from another Wikipedia article. When an entry name contains ...
A comprehensive list of symbols and signs used in typography with Latin script, with Unicode names, aliases, and links to related articles. Find out the meaning, function, and usage of various symbols such as apostrophe, asterisk, at sign, caret, circumflex, etc.
The symbol was originally introduced in 1770 by Nicolas de Condorcet, who used it for a partial differential, and adopted for the partial derivative by Adrien-Marie Legendre in 1786. [3] It represents a specialized cursive type of the letter d , just as the integral sign originates as a specialized type of a long s (first used in print by ...
Learn the meaning and usage of various emoticons or textual portrayals of a writer's moods or facial expressions. Find out the difference between Western, Eastern and 2channel style emoticons, and how to type them on different platforms.
Learn about the Unicode characters with a derived property of "Math" in various blocks, such as Mathematical Operators, Supplemental Mathematical Operators, and Miscellaneous Technical. See the code charts and examples of mathematical notation for each block.