fx-991CW

Basic Information

Product Type: Non-Programmable Scientific Calculator
Number of Digits: 10 + 2 digits

Pakistan Product Code: fx-991CW
Country of Origin: Pakistan

Display

Natural Textbook Display
Icon Menu
Dot Matrix Display
High Resolution Display
4-Gradation Display

Key Characteristics

Plastic Keys
Fast Typing Function (2-Key Rollover)
Negative Sign Key
Power Off Key

Memory

9 Variables
Variables List
Answer Memory
Function Memory
Memory Protection
Reset Function

Power Supply

Solar & Battery
Approximate Battery Life: 2 Years
Auto Power Off

Size & Weight

Size: 162 × 77 × 10.7 mm
Weight: 95 g

Accessories

Hard Case

Warranty

1 Years 

Display Settings

Number Format: Fix
Number Format: Sci
Number Format: Norm
Engineering Symbol
Engineering Notation
Fraction / Decimal Conversion
Angle Units (Degree, Radian, Gradian)
Improper / Mixed Fraction
Sexagesimal / Decimal Conversion
Digit Separator

Calculation Functions

Basic Calculations
Bracket Calculations
Fraction Calculations
Degree, Minute, Second (Sexagesimal) Calculations
Reciprocal Calculations
Percentage Calculations
Ratio Calculations
Factorial Function
π Calculations
Calculations with √ and π
Rounding Function

Advanced Calculations

Transcendental Number (e)
Base-n Calculations
Logical Operators
Complex Number Calculations
Matrix Calculations
Vector Calculations
Spreadsheet Functions
Numeric Table
Simultaneous Equations
Polynomial Equations
Inequality Calculations
List-based STAT Data Editor
1-Variable Statistics
2-Variable Statistics & Regression
Distribution Calculations
Math Box (Coin Toss, Dice Roll)

Applied Calculations

Continuous Calculations
Replay Function
Multi-replay Function
UNDO Function
SOLVE Function

Function Features

Independent Key x
Absolute Value Calculations
Square & Square Root (x² / √x)
Power & Radical Root (xʸ / x√)
Trigonometric Functions
Inverse Trigonometric Functions
Hyperbolic Functions
Inverse Hyperbolic Functions
Exponential & Logarithmic Functions (log, ln, 10ˣ, eˣ)
Base-Specified Logarithms
Coordinate Conversion
Combination & Permutation
Prime Factorization
Random Number Generation
Random Integer Generation
Summation
Differentiation Calculations
Integration Calculations
Scientific Constants
Metric Conversion Functions
Physics & Chemistry Functions

Statistical Features

List-based STAT Data Editor
Statistical Functions

Exam Compatibility

Permitted in Exams: GCSE / AS / A Level

Peripheral Devices

QR Code Support
Authenticity Check Feature