HP 48gII hp 48gII_user's manual_English_E_HDPMSG48E67_V2.pdf - Page 654

All these rule may sound confusing for a new calculator user. They all can be simplified to the following suggestion: Create directories and sub-directories with meaningful names to organize your data, and make sure you have all the global variables you need within the proper sub-directory. Local Variable Scope Local variables are active only within a program or sub-program. Therefore, their scope is limited to the program or sub-program where they're defined. An example of a local variable is the index in a FOR loop (described later in this chapter), for example « → n x « 1 n FOR j x NEXT n LIST » » The PRG menu In this section we present the contents of the PRG (programming) menu with the calculator's system flag 117 set to SOFT menus. With this flag setting submenus and commands in the PRG menu will be shown as soft menu labels. This facilitates entering the programming commands in the line editor when you are putting together a program. To access the PRG menu use the keystroke combination „°. Within the PRG menu we identify the following sub-menus (press L to move to the next collection of sub-menus in the PRG menu): Here is a brief description of the contents of these sub-menus, and their sub- menus: STACK: Functions for manipulating elements of the RPN stack MEM: Functions related to memory manipulation DIR: Functions related to manipulating directories ARITH: Functions to manipulate indices stored in variables BRCH: Collection of sub-menus with program branching and loop functions IF: IF-THEN-ELSE-END construct for branching CASE: CASE-THEN-END construct for branching START: START-NEXT-STEP construct for branching FOR: FOR-NEXT-STEP construct for loops Page 21-5