FX-991ES Plus 2nd Edition

The FX-991 ES PLUS 2nd Edition scientific calculator is the top of the ES PLUS series. Specifically, it offers 417 built-in functions for mathematics, statistics and scientific calculations. At the same time, it supports 3x3 matrix calculations, complex numbers and equation solving. In addition, it features 40 scientific constants and the Natural V.P.A.M. function that displays formulas exactly as they are written in textbooks. As a result, it is the ideal tool for electrical and chemical engineers.
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Description

The CASIO FX-991 ES PLUS 2nd Edition is the top scientific calculator of the ES PLUS series.

Specifically, it offers 417 built-in functions for mathematics, statistics and scientific calculations.
The calculator supports 3×3 matrix calculations, complex numbers and equation solving.
In addition, it features 40 scientific constants and 40 unit conversions.
At the same time, the Natural V.P.A.M. function displays formulas exactly as they are written in textbooks.
Finally, it runs on solar power and battery, ensuring continuous operation.

Who is the FX-991 ES PLUS 2nd Edition for

The CASIO FX-991 ES PLUS 2nd Edition is the ideal choice for:
Electrical engineers: complex number calculations, matrices and engineering symbols
Chemical engineers: scientific constants, unit conversions and integrals

Specifications

Display
Display Type 31 × 96 FULL DOT
Natural Display
Algebraic Input Natural V.P.A.M.
Digits / Lines 16/1+10/1
Icon Menu
4-gradation Display
Mantissa / Exponent 10+2
Memory
Replay Function
Variables Memory 9
Program Memory
Storable Programs
Mathematics
Pre-installed Formula
Functions 417
Scientific Constants 40
Metric Conversions 40
Parenthesis Levels 24
Fractional Arithmetic
Angle Unit (DEG/RAD/GRAD)
Angle Unit Conversion
Coordinate Transformation Pol/Rec
Trigonometric Functions
Hyperbolic Functions
Exponential / Logarithmic Functions
Mathematical Functions (√, x², x⁻¹…)
Base-n Calculations (HEX/DEC/BIN/OCT)
Logical Operators (AND/OR/…)
Sexagesimal ↔ Decimal Conversion
Percentage Calculation
Remainder
Prime Factorization
Engineering Notation (ENG)
Engineering Symbols
Complex Number Calculations
Random Number Generator
Random Integers
Quadratic Function Min/Max
GCD / LCM Function
Matrix / Vector Calculations
Equation Solver
Inequations
Table Function
Statistics
∑x, ∑x²
∑x, ∑y, ∑x², ∑y², ∑xy
Standard Deviation
Distribution
Regression Analysis
Math Box
Permutation (nPr) / Combination (nCr)
Differential & Integral Calculus
Numerical Integration
Numerical Differential Calculus
Other Features
Menu Language English
Programmable
Function Memory
Spreadsheet
QR Code
Auto Shutdown
Emulator Software
Power
Power Supply Solar + Battery
Battery 1 x LR-44
Hardware
Dimensions 11,1 x 77 x 161,5
Weight 95 g

Key Features & Capabilities

417 Functions & Matrix Calculations

The FX-991 ES PLUS 2nd Edition offers 417 built-in functions.
Specifically, it supports 3×3 matrix calculations, complex numbers and vector calculations.
At the same time, it features 40 scientific constants and 40 unit conversions.
As a result, it serves the demanding needs of electrical and chemical engineers.

Natural Display & Solar Power

The FX-991 ES PLUS 2nd Edition features the Natural V.P.A.M. function.
Specifically, it displays mathematical formulas exactly as they are written in textbooks.
In addition, it runs on solar power and battery.
As a result, it ensures continuous operation in any condition.

More Resources

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