User talk:Mbishop: Difference between revisions

The ∨, ∧, ¬, ≠, ≤, ≥, ×, ÷, ⌷, ↑, ↓, ⌊, ⌈ and ⊥ characters can be found on the [[:wikipediawp:IBM 2741]] keyboard with the [[:wikipediawp:APL programming language#APL symbols and keyboard layout|APL]] "golf-ball" print head inserted, these became available in the mid 1960s while ALGOL 68 was being drafted. {c.f. IBM code pages [http://www.tachyonsoft.com/cp00293.htm 293], [http://www.tachyonsoft.com/cp00907.htm 907] & [http://www.tachyonsoft.com/cp00910.htm 910]}