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The use of the caret for exponentiation can be traced back to ALGOL 60, [citation needed] which expressed the exponentiation operator as an upward-pointing arrow, intended to evoke the superscript notation common in mathematics. The upward-pointing arrow is now used to signify hyperoperations in Knuth's up-arrow notation.
A manual for the PDP-6 describes Control+C as printing ↑ C, i.e., a small superscript upwards arrow before the C. [1] In the change from 1961 ASCII to 1968 ASCII, the up arrow became a caret. [ 2 ] Use in software
The caret was originally and continues to be used in handwritten form as a proofreading mark to indicate where a punctuation mark, word, or phrase should be inserted into a document. [1] The term comes from the Latin word caret , "it lacks", from carēre , "to lack; to be separated from; to be free from". [ 2 ]
Manche Symbole sind in jedem LaTeX-2ε-System verfügbar; andere benötigen zusätzliche Schriftarten oder Pakete, die nicht notwendig in jeder Distribution mitgeliefert werden und daher selbst installiert werden müssen.
Additionally, the subsequent columns contains an informal explanation, a short example, the Unicode location, the name for use in HTML documents, [1] and the LaTeX symbol. Basic logic symbols [ edit ]
word choice/wrong word: Incorrect or awkward word choice hr # Insert hair space: s/b: should be: Selection should be whatever edit follows this mark s/r: substitute/replace: Make the substitution tr: transpose: Transpose the two words selected vf: verb form (Mostly used when translating) The version of the verb is used incorrectly e: ending
Arrow position: Select one of under or over to place the arrow over or under the character symbolizing the vector. The default is over . The defaults for 2 and 3 are set to match the LaTeX analogue of \vec : A → {\displaystyle {\vec {A}}} .
Upward arrows are often used to indicate an increase in a numerical value, and downward arrows indicate a decrease. In mathematical logic, a right-facing arrow indicates material conditional, and a left-right (bidirectional) arrow indicates if and only if, an upwards arrow indicates the NAND operator (negation of conjunction), an downwards arrow indicates the NOR operator (negation of ...