(Or A0) A language for the UNIVAC I or II, using three-address code instructions for solving mathematical problems.A-0 was the first language for which a compiler was developed.It was produced by Grace Hopper' s team at Remington Rand in 1952.Later internal versions were A-1, A-2, A-3, AT-3.AT-3 was released as MATH-MATIC.["The A-2 Compiler System", Rem Rand, 1955].[Sammet 1969, p. 12].(1995-12-03)