Description
The fx-991CW ClassWiz is the latest enhancement to the scientific calculator. With an all-new quadruple graded LCD display, users will be able to easily find their cursor while writing and modifying expressions. The ClassWiz features circular, convex buttons that are appropriately spaced to prevent the mis-keying of information, and the button labels now feature glyphic representations of the functions they perform. The hard plastic case features an etched edge surface to prevent slipping in the hand. The ClassWiz can store and recall up to nine variables which can contain integers, computations, and functions. The variables will persist in the calculator's memory between sessions. All of the calculator's functions can be accessed through the convenient Math Catalog. The Math Catalog also hosts 47 scientific constants and 40 measurement conversions. By partnering the ClassWiz with an internet-capable mobile device, solutions can be graphed and visualized through ClassPad.net by scanning a QR code on the calculator's screen.
Basic Information
Product features
- Non Programmable
- Non Graphing
Product type
- Non Programmable
- Non Graphing
Number of digits
- 10 + 2 digits
Liquid crystal display
- Natural textbook display
- Icon menu
- Dot matrix display
- High Resolution
- 4-gradation display
Key characteristics
- Plastic keys
Key functions
- Negative Sign
- Power Off
Memory
- Variables: 9 (A,B,C.D.E.F.X.Y,M)
- Variables List
- Answer Memory
- Function memory
- Memory Protection
- Reset Function
Power supply
- Solar & Battery
- Approximate battery life Main 2 years
- Auto Power Off
Size (D × W × H)
- 162 × 77 × 10.7 mm
Weight
- 95 g
Accessories
- Hard Case
Display Settings
Display format settings
- 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
Calculation Functions
Basic calculation
- Basic Calculation
- Bracket Calculation
- Fraction Calculation
- Degree, Minute, Second (Sexagesimal) Calculations
- Reciprocal Calculation
- Percent Calculation (scientific calculator function)
- Ratio calculation
- Factorial Function
- π
- Irrational number calculation
- 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)
Applied calculation
- Continuous Calculation
- Replay Function
- Multi-replay Function
- UNDO
- SOLVE Function
Functions Features
Basic functions
- Basic Mathematical Functions
- Independent Key x
- Absolute Value Calculation
- Square and square root (x2/√)
- Power and radical root (xy/x√)
- Trigonometric, inverse trigonometric (sin/cos/tan/sin–1/cos–1/tan–1)
- Hyperbolic, inverse hyperbolic (sinh/cosh/tanh/sinh–1/cosh–1/tanh–1)
- Exponential, logarithmic (log, ln, 10x, ex)
- Base specified logarithmic
- Coordinate Conversion
- Combination / Permutation
- Prime Factorization
- Random Number Generation
- Random Integer Generation
- Summation
- Differentiation Calculation
- Integration calculation
Physics- and chemistry-related functions
- Scientific Constants
- Metric conversion function
Statistical Functions
Statistical data
- List based STAT-data editor
Exam Compatibility
Permitted in exams
- GCSE/AS/A Level
Peripheral Devices
Connection to peripheral devices
- QR Code
- Authenticity Check