slash and backslash

Date: 2010-07-25 20:50 (UTC)
From: (Anonymous)
I am so sorry children but the use of "backslash" predates the internet and Microsoft operating systems.

The APL programming language (Q.V.) used forward slash as a function to perform compression. It used backslash to perform expansion... quite clever actually... see below:

user types:
0 0 1 1 1 1 / 'ABCDEF'
APL replies with answer:
CDEF

user types:
1 1 0 0 0 0 \ 'ABCDEF'
APL replies with answer:
AB

This use of backslash predates Microsoft, the internet and even BASIC!
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