dimension m.sqrt[1] sqrt = "meow" ? sqrt[1] : 1,00 ? m.sqrt[1] : meowNormally you never need to m. arrays except when you want to pass them by reference to user-defined functions (ALEN() etc. are okay without m.) but if the array has the same name as a builtin function then the array needs to be emmed. This is probably because of name scoping (builtin names are always found first).
? iif[.f., 1, 2] : 2