Comments
A semi-colon does not terminate a comment - it can only be terminated by a newline. Comment statements can be continued by use of %c (or by being broken after a comma). A new type of comment is introduced; it is delimited by curly brackets, '{' and '}'. Such a comment can appear between atoms of a statement (an atom is an identifier, constant, keyword, operator or delimiting symbol). Example: A(I{month}, J{salary}) = 927.4 The comment text can contain any symbols except '}' and newline. The closing '}' can be omitted, in which case the comment is terminated by the next newline. {...} comments are particularly useful for explaining own array initialisations.