HP 30b Business Professional, Быстрый старт, Страница: 17 / 40

Getting Started 11
Memory and the Memory Menu
The Memory menu contains the following items: memories 1–9 ( Mem 1–9 )
and 0 ( Mem 0 ), Cash Flow , Statistics ( Stats ), and Memory . To enter the menu,
press
:t
. Press
<
or
>
repeatedly to scroll through the
items starting with memory 1 ( Mem 1 ).
The Cash Flow and Statistics menus share the same memory and are limited
to a combined total of 50 memory slots. The number displayed with Memory
refers to the number of remaining memory slots. When the cash flow or
statistics items are displayed, a number also appears on the bottom line. This
number indicates the number of memory slots used by the menu.
Pressing
I
with this number displayed resets the memory of the dis-
played menu item and erases all entered data. Since entering data in these
menus can represent a significant amount of work, you will be asked to con-
firm your choice. At the
Del.Data?
or
Del.CF?
prompts, press
I
to con-
firm, or
O
to cancel.
Storing and Recalling Numbers
To store a number in the display, press
:$
, followed by the number of
the memory in which you wish to store that number, (1-9, or 0). To recall the
number later on, press
L
followed by the memory number. When a memory
item is displayed, you can key in a new number and modify the value of the
memory by pressing
I
.
Reverse Polish Notation (RPN) Mode
The following information is a brief overview of how RPN works. In RPN
mode, numbers are entered first, separated by pressing
I
, followed