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fx-85ES PLUS-2


User-friendly Interface

Rectangular coordinate graphing, Polar coordinate graphing

Integration graph

Parametric function graphing, Inequality graphing

Trace, Zoom (box zoom, zoom in, zoom out, auto zoom)

Table and Graph

Dual Graph (table and graph, graph and graph)

Sketch (tangent line, normal line, inverse function)

Solve (root, minimum, maximum, intersection, integration)

Dynamic graph

Conic section graph

Recursion graph

List-based one-variable and two-variable statistical analysis

Statistical regression calculations

Statistical plot (scatter plot, xyLine, normal probability plot, histogram,

box plot)Statistical regression graphs (linear, med-med, quadratic,

cubic, quartic, logarithmic, exponential, power, sinusoidal,

logistic regression)

Advanced statistical calculations: tests (Z-test, t-test, Chi square

test, F-test, ANOVA), intervals (Z-interval, t-interval), distributions

Pie chart

Bar graph

Power functions (square root, cubic root, square, power, radical root)


Coordinate conversion (Pol, Rec)

Combination/Permutation (nCr, nPr)

Factorial, Inverse, random numbers, Fractions

Logical operations

Matrix calculations

Complex number calculations

Base-n calculations/conversions

List data calculations

Metric Conversion

Natural format equation output

Calculation history

Spreadsheet and statistical plot

Numeric equation solver, simultaneous equations,

polynomial equations

Financial calculations


Icon menu

Data communication

User memory: 62,000 bytes, User Storage memory: 1.5 M bytes

Hardware Features

High-resolution LCD

The large 64 × 128-dot display of the fx-9860GII Series high-resolution

LCD produces formulas, graphs and graphics that

are sharper, clearer, and easier to read.

High-speed CPU

A high-performance, high-speed CPU gives fx-9860GII Series

calculators processing speeds that are three to five time faster than

other brand calculators in their class. Processes and

plots encountered in complex calculations and graphics are

handled with ease, for enhanced operational efficiency

and learning as well.

Large-capacity 1.5MB Flash Memory

An ample 1.5MB of Flash Memory capacity allows worry-free

downloading and

storage of data and applications.

Out-of-the-box USB Operations

A USB cable, unit-to-unit cable and Program-Link Software all are

included with the calculator, so high-speed data

communication with

a computer as well as unit-to-unit data and program transfers can

be performed virtually out of the box.

Natural textbook display!

CASIO’s original “Natural Expression Input Display” and ”

Natural Expression

Output Display” make it possible to display fractions,

exponents, logarithms,

powers, and square roots just as they are written in the textbook.

The result is enhanced student comprehension and improved

math class efficiency.

Natural Input

Natural Output

Polynomial equation result

Result of expression with Pi symbol


fx-9860GII Series calculators come with the same eActivity capabilities

that originally appeared on the ClassPad 330. Now teachers as well

as students can

create their own problems and study materials. Students get

the opportunity to

learn at their own pace for more efficient study both

at school and at home.

eActivity is a great motivator for learning and understanding.

Built-in Software


A multi-function spreadsheet with built-in graphing capabilities is

a valuable tool for table calculation lesson exercises.


E-CON2 provides total control over the optional EA-200 Data Analyzer.

It makes it possible to measure changes in temperature, sound,

or speed using the EA-200 without any troublesome

settings or program input.

Add-in Software

Pre-installed Software

Pre-installed add-in software comes installed on the calculator

when you purchase it.
You can use such software as-is, or you can delete it to

free up memory.


Geometry add-in software is designed to make

learning geometry fun.

Downloadable Software


The Physium add-in provides instant access to the periodic table of

elements, whose data can be used in calculations. Often-use

elements and atomic symbols can be stored for quick and

easy recall whenever you need them.

Other Features


Normal distribution, student’s t-distribution, and other often-used

statistical calculations are provided in function format for

easier practical application.

Inequality Graphing

New support for graphing the inequality of an x=Constant graph

and x=f ( y) graph allows study of the area for

which the x-range is defined.

List-based Statistics

Store a list of values in memory for use when performing function

and statistical calculations, when drawing graphs, or

when generating tables of numeric values

Advanced Statistics

Perform tests, confidence interval, probability distribution, and

other calculations and graphing.1-sample t-test graph

Financial Calculations


Bond calculation

Simple interest

Compound interest

Investment appraisal (cash flow)


Interest rate conversion (annual percentage rate

and effective interest rate)

Cost, selling price, or margin

Day or date calculations




  • Product features

    Non Programmable
    Non Graphing
    Number of Functions : 252
  • Product type

    Non Programmable
    Non Graphing
  • Number of digits

    10 + 2 digits
  • Liquid crystal display

    Natural textbook display
    Dot matrix display
  • Key characteristics

    Plastic keys
  • Key functions

    Negative Sign
    Power Off
  • Memory

    Variables: 9
    Independent Memory (M / M+ / M-)
    Answer Memory
    Memory Protection
    Reset Function
  • Power supply

    Approximate battery life Main 3 years
    Auto Power Off
  • Size (D × W × H)

    161.5 × 77 × 11.1 mm
  • Weight

    95 g
  • Accessories

    Hard Case

  • Display format settings

    Number Format: Fix
    Number Format: Sci
    Number Format: Norm
    Engineering Notation
    Toggling Calculation Results

  • Basic calculation

    Basic Calculation
    Bracket Calculation
    Fraction Calculation
    Degree, Minute, Secound (Sexagesimal) Calculations
    Reciprocal Calculation
    Percent Calculation (scientific calculator function)
    Factorial Function
    Calculation with √ and π
    Rounding Function
  • Advanced calculation

    Transcendental number: e
    Matrix calculations
  • Applied calculation

    Multi-statement Command (:)
    Continuous Calculation
    Replay Function
    Multi-replay Function

  • Basic functions

    Basic Mathematical Functions
    Number of Functions : 252
    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
    Prime Factorization
    Random Number Generation
    Random Integer Generation
  • Other functions

    Inequality Calculations

  • Statistical data

    List based STAT-data editor
  • Statistical calculation

    Statistics Function
    Basic Statistics