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In the following, the quantity + is the whole radicand, and thus has a vinculum over it: a b + 2 n . {\displaystyle {\sqrt[{n}]{ab+2}}.} In 1637 Descartes was the first to unite the German radical sign √ with the vinculum to create the radical symbol in common use today.
An overline, overscore, or overbar, is a typographical feature of a horizontal line drawn immediately above the text. In old mathematical notation , an overline was called a vinculum , a notation for grouping symbols which is expressed in modern notation by parentheses, though it persists for symbols under a radical sign.
unstrict inequality signs (less-than or equals to sign and greater-than or equals to sign) : 1670 (with the horizontal bar over the inequality sign, rather than below it) ...
X bar, x̄ (or X̄) or X-bar may refer to: X-bar theory, a component of linguistic theory; Arithmetic mean, a commonly used type of average; An X-bar, a rollover protection structure; Roman numeral 10,000 in vinculum form
1. If y is a variable that depends on x, then , read as "d y over d x" (commonly shortened to "d y d x"), is the derivative of y with respect to x. 2. If f is a function of a single variable x, then is the derivative of f, and is the value of the derivative at a. 3.
In number theory, it has been used beginning with Carl Friedrich Gauss (who first used it with this meaning in 1801) to mean modular congruence: () if N divides a − b. [ 10 ] [ 11 ] In category theory , triple bars may be used to connect objects in a commutative diagram , indicating that they are actually the same object rather than being ...
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