Casio fx-991CW Scientific Calculator, Black and Pink color

Product type

• Non Programmable
• Non Graphing

Display format settings

• Liquid crystal display
• Natural textbook display
• Icon menu
• Dot matrix display
• High Resolution
• 4-gradation display
• Number Format: Fix
• Number Format: Sci
• Number Format: Norm
• Engineering Symbol
• Engineering Notation
• Fraction / Decimal Conversion
• Angle Unit (Degree, Radian, Gradian)
• Improper/Mixed Fraction
• Sexagesimal/Decimal Conversion
• Digit Separator

Key functions

• Fast-typing function (2-key rollover)
• Negative Sign
• Power Off

Memory

• Variables: 9
• Variables List
• Answer Memory
• Function memory
• Memory Protection
• Reset Function

Power supply

• Solar & Battery
• Approximate battery life Main 2 years
• Auto Power Off

Calculation Functions

• Basic Calculation
• Bracket Calculation
• Fraction Calculation
• Degree, Minute, Secound (Sexagesimal) Calculations
• Reciprocal Calculation
• Percent Calculation (scientific calculator function)
• Ratio calculation
• Factorial Function
• Calculation with √ and π
• Rounding Function

Advanced calculation

• Transcendental number: e
• Base-n calculation
• Logical Operators
• Complex number calculation
• Matrix calculations
• Vector calculations
• Ratio calculation
• Spreadsheet
• Numeric Table
• Simultaneous Equation
• Polynomial Equation
• Inequality Calculations
• List based STAT-data editor
• 1-Variable statistics
• 2-Variable statistics and regression
• Distribution Calculations
• Mathbox (Coin Toss, Dice Roll)

Warranty period 3 Years