| separatrix (|) |
| Definition -
An obsolete name for the | symbol.
Notes: 1. This symbol was once used to perform the function that is now performed by the decimal point (e.g., 2|3 = 2.3). |
|
Etymology - The word derives from the Late Latin separare, to separate. |
|
Oxford English Dictionary - Its first citation is from 1660: "But the best and most distinct way of distinguishing them [sc. Decimals] is by a rectangular line after the place of the unit, called Seperatrix. …. [Ibid. 13] Therefore in writing of decimal parts let the seperatrix be always used." (J. Moore Arith. 11 ) |
