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Learn about the tilde (~), a grapheme with various functions in different languages and scripts. Find out how it originated as a scribal abbreviation, how it became a diacritic and a symbol for approximation, and how it is typed on different keyboards.
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.
It’s easy to make any accent or symbol on a Windows keyboard once you’ve got the hang of alt key codes. If you’re using a desktop, your keyboard probably has a number pad off to the right ...
Learn the meanings and uses of various mathematical symbols, such as + (plus sign), − (minus sign), × (multiplication sign), and more. See examples, syntax, and Unicode and LaTeX renderings of each symbol.
Learn about the meaning, usage and history of various symbols and signs used in typography, such as + (plus sign), ≈ (almost equal to), ́ (acute accent) and more. See the Unicode name, similar glyphs and related articles for each symbol.
Learn about the marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. Find out the meanings and functions of clefs, lines, bars, braces, brackets, and more.
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.