Vertical bar

For technical reasons, "|" does not redirect here.

A vertical bar is the glyph "|". It has several other names besides vertical bar, such as "pipe", "vertical slash", and "bar". In mathematics, it may be put on both sides of a real or complex number to mean its absolute value. When applied on both sides of a matrix, it means its determinant. When placed in between two numbers, it means the divisibility relation (for example. $a\mid b$ means "a divides b").

In mathematics, double vertical bars are also used to refer to various mathematical concepts. These include the parallel relation (as in $\ell _{1}\parallel \ell _{2}$) and the norm of a vector (as in $\|\mathbf {v} \|$).

Related pages

• Macron