11 Jul
2016
11 Jul
'16
12:44 p.m.
On 2016-Jul-09 11:59:51 -0400, John Cowan <cowan(a)mercury.ccil.org> wrote:
| was commonplace, however, as it has at least 15
mathematical uses:
see <https://en.wikipedia.org/wiki/Vertical_bar#Mathematics>.
As far as I know, it has always been used as 'or' on computers.
APL uses it for absolute value and modulo.
--
Peter Jeremy