A bit late to the party, but this also works if you have the week number. For example, if you have week number 23, you can determine the month with the following modification to the formula: =TEXT(A1*7,mmm). Follow the same logic presented in the above table, just swap the numbers as needed.
Directive (programming) In computer programming, a directive pragma (from pragmatic) is a language construct that specifies how a compiler (or other translator) should process its input. Directives are not part of the grammar of a programming language, and may vary from compiler to compiler.
Note: Older versions of the C language didn't have prototypes, the function declarations only specified the return type and did not list the argument types. Unless your stuck with an old compiler, function declarations should always be prototypes and this book uses the terms interchangeably.