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Casio Fx991ex Classwiz Scientific Calculator


Power Source: Solar, Battery
Brand: Casio
Number of Batteries: 1 LR44 batteries required. (included)
Model Name: Casio Fx991ex Classwiz Scientific Calculator
Item Dimensions: LxWxH 0.4 x 6.5 x 3 inches


Casio Fx991ex Classwiz Scientific Calculator


Display type: 62 * 192 FULL DOT
Model: Casio Fx991ex Classwiz Scientific Calculator
Display: Natural display
Algebraic input logic: Natural V.P.A.M.
Number of characters/lines: 17/1+10/1
Icon menu
Significand function: 10+2


Repeat function
Variable memory: 9
Number of storable programs: Calc / Solv button

Basic mathematics

Functions: 552
Scientific constants: 47
Unit conversions: 40
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 based on n (hexadecimal/decimal/binary/octal)
Logical operators (AND/OR/etc.)
Calculations in the sexagesimal system
Percentage calculations
Prime factorization
Technical notation ENG/ENG
Calculation with technical symbols
Calculation of complex numbers
Random number generator
Random integers
Base-N calculations
Value table
Matrix calculation/vector calculation: 4X4
REF/RREF function
Equation calculation: until 4 degrees
Inequality calculation


Summation of ∑x, ∑x2
Summation of ∑x, ∑y, ∑x2, ∑y2, ∑xy
Standard deviations for grouped and ungrouped values
Distribution functions (normal distribution and inverse normal distribution, binominal distribution, Poisson distribution)
Regression analysis
Permutations (nPr) and combinatorics (nCr)

Differential and integral calculus

Numerical integral calculus
Numerical differential calculus


Menu language: english
QR code function¹
Spreadsheet calculations
Automatic shut-off
Identical emulator software
Energy supply: Solar+Battery
Battery type: 1 x LR-44
Size (H x W x D mm): 11,1 x 77 x 165,5
Weight: 90 g


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