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12 digits
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Regular percentRegular percentage calculations.
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150 steps checkDisplays up to 150 previous calculation steps.
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Tax calculationAutomatic calculation of price plus tax, price less tax, discount, selling price, tax amount, discount amount, and margin amount.
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Solar & BatterySolar powered when light is sufficient, battery powered when light is insufficient.
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Function command signsA symbol (+, -, ×, ÷) on the display indicates the status of operation you are currently performing.
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Key rolloverKey operations are stored in a buffer, so nothing is lost even during high-speed input.
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Extra Large displayLarger display makes more data easier to read.
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Plastic keysDesigned and engineered for easy operation.
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Mark-upAll the mark-up capabilities of an adding machine for simplified cost and profit calculations.
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Localized number displayDisplays numbers in four digit separator formats(Type A, Type B, Type C and Indian).
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Display
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- Display type: DOT/LCD
- Algebraic input logic: S-V.P.A.M.
- Number of characters/lines: 12/1+10/1
- Significand function: 10+2
Memory
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- Repeat function
- Variable memory: 8
Basic mathematics
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- Functions: 240
- Bracket levels: 24
- Fraction calculations
- Angle dimensions DEG/RAD/GRAD
- Conversions between >DEG/>RAD/>GRAD
- Coordinate transformation Pol ÷ Rec
- Trigonometric functions sin/cos/tan/sin-1/cos-1/tan-1
- Hyperbolic functions sinh/cosh/tanh/sinh-1/cosh-1/tanh-1
- Exponent, log, In, 10x, ex
- Mathematical functions √, x2, x-1, 1/x, x!, xy, x1/y
- Calculations in the sexagesimal system
- Percentage calculations
- Technical notation ENG/ENG
- Random number generator
Statistics
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- Summation of ∑x, ∑x2
- Summation of ∑x, ∑y, ∑x2, ∑y2, ∑xy
- Standard deviations for grouped and ungrouped values
- Regression analysis
- Permutations (nPr) and combinatorics (nCr)
Other
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- Menu language: english
- Automatic shut-off
- Energy supply: Battery
- Battery type: 1 x AA
- Size (H x W x D mm): 14 x 77 x 162
- Weight: 105 g
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Availability of models and/or lineups may differ depending on the country or region.
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Technical amendments and errors excepted. The sizes in figures do not correspond to the original sizes.
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Fraction calculations
Combination and permutation
Statistics (STAT-data editor, Standard deviation, Regression analysis)
9 variable memories
Comes with slide-on hard case
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Product features
Non Programmable
Non Graphing
Number of Functions : 401
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Product type
Non Programmable
Non Graphing
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Number of digits
10 + 2 digits
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Liquid crystal display
S-V.P.A.M. (Super Visually Perfect Algebraic Method)
Dot matrix display
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Key characteristics
Plastic keys
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Key functions
Negative Sign
Power Off
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Memory
Variables: 9
Independent Memory (M / M+ / M-)
Answer Memory
Memory Protection
Reset Function
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Power supply
Solar & Battery
Approximate battery life Main 3 years
Auto Power Off
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Size (D × W × H)
155 × 78 × 13 mm
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Weight
105 g
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Accessories
Hard Case
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Basic Mathematical Functions
Number of Functions : 401
Absolute Value Calculation
Power Function (Square)
Power Function (Cube)
Power Function
Power Function (Square Root)
Trigonometric Function
Inverse Trigonometric Function
Hyperbolic / Inverse Hyperbolic Function
Exponential Calculation
Logarithmic Calculation
Log not base 10
Coordinate Conversion
Combination / Permutation
Random Number Generation
Summation
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Product features
150 steps check
Localized number display
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Product type
Desktop Type
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Number of digits
12 digits
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Liquid crystal display
Extra Large display
Function command signs
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Key characteristics
Plastic keys
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Key functions
Key rollover
Double zero key
Triple zero key
Shift key (▶)
Sign Change (+/-)
Mark-up
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Memory
Independent memory
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Power supply
Solar & Battery
LR44×1
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Size (D × W × H)
191 × 140 × 35 mm
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Weight
205 g
| Casio Fx 991 EX CLASSWIZ Calculator Original WITH WARRANTY CARD AND STICKERS WITH CHECK FOR AUTHENTICITY STICKER Intuitive, easy-to-learn icon display Natural Textbook Display List display function for thorough, speedy learning Easy-to-understand English messages and interactive format High computational competence for performing even advanced mathematics Online Visualization Service Using QR Code A comprehensive set of advanced functions unique to CASIO scientific calculators -Spreadsheet calculations -Matrix calculations -Vector calculations -Integration calculations -Multiline display -Differential calculations -Equation calculation -Inequality calculations -Advanced statistical distribution calculations -Ratio calculations -Metric conversion -Scientific constants -Variables list -Statistics list -Digit separator -Engineering symbols #casioph #calculators #Fx991EXCLASSWIZ |
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