Using Menus; Specifying The Calculation Mode; Configuring The Calculator Setup - Casio fx-991ZA Plus User Manual

The display currently shows an intermediate result of a
Disp
multi-statement calculation.
Important: For some type of calculation that takes a long time to execute,
the display may show only the above indicators (without any value) while it
performs the calculation internally.

Using Menus

Some of the calculator's operations are performed using menus. Pressing
N or w, for example, will display a menu of applicable functions.
The following are the operations you should use to navigate between
menus.
• You can select a menu item by pressing the number key that corresponds
to the number to its left on the menu screen.
• The $ indicator in the upper right corner of a menu means there is another
menu below the current one. The ` indicator means another menu above.
Use c and f to switch between menus.
• To close a menu without selecting anything, press A.

Specifying the Calculation Mode

When you want to perform this type of
operation:
General calculations
Complex number calculations
Statistical and regression calculations
Calculations involving specific number
systems (binary, octal, decimal,
hexadecimal)
Equation solution
Matrix calculations
Generate a number table based on one or
two functions
Vector calculations
Distribution Calculations
Note: The initial default calculation mode is the COMP Mode.

Configuring the Calculator Setup

First perform the following key operation to display the setup menu:
1N(SETUP). Next, use c and f and the number keys to configure
the settings you want.
Underlined ( ___ ) settings are initial defaults.
1MthIO 2LineIO
Natural Display (MthIO) causes fractions,
irrational numbers, and other expressions to be
displayed as they are written on paper.
Specifies the display format.
EN-5
Perform this key
operation:
N1(COMP)
N2(CMPLX)
N3(STAT)
N4(BASE-N)
N5(EQN)
N6(MATRIX)
N7(TABLE)
N8(VECTOR)
Nc1(DIST)
Math Math