In this manual, diagrams called Menu Maps are included at the beginning of each section to assist you with navigating
through the menus used for that section. For an example of a menu map, see Figure 7.
There are four types of menu items:
1. Read/write. Read/write menu items, such as Fixed in the Break-even menu shown above, are easily recognizable,
because when they are selected, both the INPUT and small (=) annunciators are lit. When lit, these annunciators
indicate that entering a number and pressing
=
Pressing
(outside of a mathematical operation) calculates the value for that item based on available data.
2. Read-only. Read-only items such as Internal Rate of Return ( IRR% ) in the IRR menu are display-only; they are
calculated values computed internally by the calculator.
3. Write-only. Write-only items, such as investment interest rate ( Inv. I% ) in the Net Present Value (NPV) menu, are
similar to read/write items in that the INPUT annunciator is lit when these items are selected, indicating that entering a
number and pressing
value for that item.
4. Special items. Special items, such as the Degree/Radian option in the Mode menu, the items of the Reset menu, and
the items of the Percent Calculation (%calc ) menu perform an action when
menu, this action can be the selection of a sub-menu (%calc menu), changing a mode or setting (Mode menu), or
erasing data (Reset menu).
Figure 7 The Menu Map for the Break-even Menu
I
I
stores that number in that menu item. However, the
15
will store the entered number in the displayed menu item.
I
Basic Features
=
key does not calculate a
is pressed. Depending on the