ARCCOS1 BASpßßõ øø)õ)ø€) < ùïZõ è"F¿ í"#.#% Å ARCCOS1 Gerhard Boehm 16.10.86(Å x=cos(y), y=arccos(x) (y in Grad)‘(ž øï ì  æ ÍÌÌL| /2 èïÿ((÷(õ øø)õ)ø€) < ùïZõ è"F¿ í"#.##"; ø;¿," "; ù P° ø) ª¿,"arcuscos="; ø