Product Description
The Casio FX-991ES Plus is Casio's most advanced scientific calculator with 417 mathematical functions. Recommended for Advanced GCSE, A/AS Levels and Highers. Dual powered (solar with battery back-up). This advanced model allows Matrix, Equation, Integration and Differential calculations as well as Random Integers, Scientific Constants and Metric Conversions. The large natural texbook display (Natural V. P. A. M. ) shows mathematical expressions as they appear in your textbooks. Suitable for GCSE, A Level and above. LCD display. 9 data memory. Non-stick keys. 10+2+15 -digit display. Auto shut-off. 417 functions. Verify function. Algebraic logic. Regression analysis. Statistical functions. Hyperbolic. 24 levels of parenthesis. Metric conversions. Dual power source - solar. General information: Batteries required 1 x button cell (included).
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- 417 functions
- Display: Natural Textbook Display, Natural V.P.A.M.
- Power supply: solar powered with an auxiliary battery
- with a hard case
- Dimensions (H x W x D): 162,0 x 80,0 x 11,1 mm
- Weight: 95g
Functions:
- NEW: New fraction input mode
- NEW: Improved equation mode
- NEW: Random integers
- Repeat function
- 24 levels of brackets
- Variable memories (6)
- STO/RCL keys
- Scientific functions:
- Trigonometric and inverse trigonometric functions
- Hyperbolic and inverse hyperbolic functions
- Exponential functions 10x, ex
- Inverse function x-1
- Power and root functions x√, √, x2, xy
- Logarithm functions (log, ln)
- Combinatoric and permutations
- Random number generator
- Converts between polar coordinates and rectangular coordinates
- Calculates with fractions (two modes)
- Converts between sexagesimal and decimal
- Calculates in gradian, degree and radian measure
- π key, e key and % key
- SCI/FIX
- Statistics:
- Lists of based statistics
- Statistics with a variable
- standard deviation
- Statistics with two variables
- Linear
- Exponential
- abExponential
- Logarithmic
- Power
- Inverse
- Quadratic
- Solve/Calc
- Numeric integration
- Numeric differentiation
- ∑()-function
- calculates with complex numbers
- a+bi /r∠θ
- Calculations on the basis of n
- Logical calculations
- Equations
- Linear systems of equations
- Polynomial equations
- Linear systems of equations
- Polynomial equations
- Matrix
- Determinants
- Inverse matrix
- Vector
- internal product
- external product
- physical constants
- metric conversion
- Normal entry
- Fractions
- Roots
- Powers
- Parentheses
- Amounts
- Numeric differentiation/integration
- Totals
- Non-natural input (such as the MS models)
- Output in √-form
- Output in π-form
- Functions table
Product Highlights
- 417 functions
- Display: Natural Textbook Display, Natural V.P.A.M.
- Power supply: solar powered with an auxiliary battery
- With a hard case
- LCD display.
- 9 data memory.