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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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More comfortable in the hand!
A rounded design that fits naturally in the hand and a slim body that’s comfortable to hold
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Attachable and detachable in any direction!
Hard case that’s attachable and detachable in any direction for greater ease of use
More legible!
The keys have been made rectangular, making them easier to press. They are also easier to read because of larger text.
Easier to use!
Highly visible, easy-to-press cursor keys and function keys
Function Natural Textbook Display
Features Natural Textbook Display format for displaying equations and calculation results just as they appear in textbooks
Fraction and square root
Trigonometry
Table
Statistical calculations
Equation calculations
Complex number calculations
Matrix calculations
Vector calculations
SOLVE calculations
CALC calculations
Integration calculations
Differential calculations
Scientific constants
Metric conversions
| 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 |
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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- 61 KB RAM - 1.5 MB Flash ROM. 4 AAA Batteries Required, Best with Polaroid AAA Batteries.
- Display: 64 x 128 pixel, monochrome w/ Backlight
- Solve Integral/Probability function
- Probability function in Run Mat Application - Integral Graphing
- Dimension (H x B x T): 184 x 91,5 x 21,2 mm
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