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• The table below describes some of the typical indicators that appear at
the top of the screen.
The keypad has been shifted by pressing the key. The
keypad will unshift and this indicator will disappear when you
press a key.
The alpha input mode has been entered by pressing the
key. The alpha input mode will be exited and this indicator
will disappear when you press a key.
//
Indicates the current setting of Angle Unit (: Degree, :
Radian, or : Gradian) on the setup menu.
FIX
A fixed number of decimal places is in effect.
SCI
A fixed number of significant digits is in effect.
M
There is a value stored in independent memory.
The calculator is standing by for input of a variable name to
assign a value to the variable. This indicator appears after
you press .
Indicates that MathI/MathO or MathI/DecimalO is selected for
Input/Output on the setup menu.
The display currently shows an intermediate result of a multi-
statement calculation.
This indicator is displayed while the calculator is being
powered directly by its solar cells, either entirely or in some
combination with the battery. (fx-991EX only)
Using Menus
Some of the operations of this calculator are performed using menus.
Menus are displayed by pressing or and then (SETUP).
General menu operation operations are described below.
• You can select a menu item by pressing the number key that
corresponds to the number to its left on the menu screen.
• A vertical scroll bar (1) indicates that the menu runs off the screen. In this
case, you can use and to scroll the menu up and down. A left
arrow (2) indicates that the currently displayed menu is a sub-menu. To
return from a sub-menu to its parent menu, press .
• To close a menu without selecting anything, press .
Calculation Mode
Specify the calculation mode that is suitable for the type of calculation you
want to perform.
1. Press to display the Main Menu.
2. Use the cursor keys to move the
highlighting to the icon you want.
4
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