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Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
Period-after-opening symbol (on cosmetics as 6M, 12M, 18M, etc.) U+2602 ☂ UMBRELLA - keep dry. U+2614 ☔ UMBRELLA WITH RAIN DROPS - keep dry. Japanese postal mark. ℮, the European estimated sign U+212E. Inventory tracking symbols. Barcode such as a Universal Product Code. QR code.
The Computer Modern fonts replace it with an "E.T." symbol in the cmti# (text italic) fonts, so it can be entered as {\it\&} in running text when using the default (Computer Modern) fonts. [ 39 ] In Microsoft Windows menus, labels, and other captions, the ampersand is used to denote the next letter as a keyboard shortcut (called an "Access key ...
propositional logic, Boolean algebra, first-order logic. ⊥ {\displaystyle \bot } denotes a proposition that is always false. The symbol ⊥ may also refer to perpendicular lines. The proposition. ⊥ ∧ P {\displaystyle \bot \wedge P} is always false since at least one of the two is unconditionally false. ∀.
The asterisk was a supported symbol on the IBM 026 Keypunch (introduced in 1949 and used to create punch cards with data for early computer systems). [22] It was also included in the FIELDATA character encoding [ 23 ] and the ASCII standard.
Glossary of mathematical symbols. 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. As formulas are entirely constituted with symbols of various ...
1 Control-C has typically been used as a "break" or "interrupt" key. 2 Control-D has been used to signal "end of file" for text typed in at the terminal on Unix / Linux systems. Windows, DOS, and older minicomputers used Control-Z for this purpose. 3 Control-G is an artifact of the days when teletypes were in use.
In high-level computer programming and digital electronics, logical conjunction is commonly represented by an infix operator, usually as a keyword such as "AND", an algebraic multiplication, or the ampersand symbol &(sometimes doubled as in &&). Many languages also provide short-circuitcontrol structures corresponding to logical conjunction.