Information About

Vinculum
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Examples of its use include the case of a group of infinitely repeating digits, for example,

: rac{1}{3} = 0.333333\dots = 0.\overline{3}

It is also used in common Arithmetic to denote that the numerator is being divided by the denominator as a whole group.

  • 10} = rac{5}{1} = 5


It is also used in the notation of a Radical to indicate the Radicand whose root is being indicated. In the next case, the quantity ab+2 is the radicand, and thus has a vinculum over it.

:\sqrt {Link without Title} {ab+2}

The vinculum is also sometimes used in Boolean Algebra , where it serves to indicate a group of expressions whose logical result is to be Negated , as in

:\overline{AB}

The vinculum should not be confused with a similar-looking Vector notation, e.g. \overrightarrow{AB} "vector from A to B", or ec{a} "vector named ''a''".