Casio fx-991ZA PLUS II User Manual

Calculation Modes and
Calculator Setup
Calculation Mode
Before starting a calculation, you must first enter the correct mode as
indicated in the table below.
When you want to perform this type of
operation:
Perform this key
operation:
General calculations (COMP)
Complex number calculations (CMPLX)
Statistical and regression calculations (STAT)
Calculations involving specific number
systems (binary, octal, decimal, hexadecimal)
(BASE-N)
Equation solution (EQN)
Matrix calculations (MATRIX)
Generation of a numerical table based one or
two functions
(TABLE)
Vector calculations (VECTOR)
Distribution calculations (DIST)
Inequality solution (INEQ)
Ratio calculations (RATIO)
Note
• The initial default calculation mode is the COMP Mode.
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Casio fx-991ZA PLUS II Specifications

General

Type	Scientific Calculator
Number of Functions	552
Equation Solver	Yes
Matrix Calculations	Yes
Complex Number Calculations	Yes
Integration	Yes
Differentiation	Yes
Memory	9 variables
Weight	95 g
Protective Case	Yes
Display	Natural Textbook Display
Power Source	Solar and Battery