Casio FX-9860GIII - Graphing Calculator

Overview

The Casio fx-9860GIII is a powerful, user-friendly graphing calculator designed for education, advanced mathematics, and science applications. With a large high-resolution display, fast CPU, and extensive built-in features—including Python programming—it offers both accessibility for students and advanced tools for professionals.

Key Features

User-Friendly Design

• Large High-Resolution Display: 128 × 64 dot LCD

• Natural Textbook Display: Clear, intuitive layout that reproduces textbook-style math notation

• Icon Menu System: Easy navigation through functions

Powerful Performance

• High-Speed CPU for faster calculations and smooth graph rendering

• Over 2,900 Functions covering mathematics, statistics, programming, and financial calculations

Graphing Capabilities

• Rectangular & Polar Coordinate Graphs

• Parametric & Inequality Graphs

• Dynamic Graphs

• Conic Section & Recursion Graphs

• Dual Graphs (table + graph, or graph + graph)

• Integration, Roots, Min/Max, and Intersections

• Sketch Tools (tangent line, normal line, inverse function)

Advanced Applications

• Geometry Application (construct, measure, animate, and analyze geometric figures)

• Recursion Graphing

• Spreadsheet Integration

• Financial Functions (compound interest, day calculations)

Statistics & Data Visualization

• Statistical Plots: scatter, xyLine, histogram, normal probability, box plot, pie chart, bar graph

• Regression Models: linear, quadratic, cubic, quartic, logarithmic, exponential, power, sinusoidal, logistic

• Advanced Statistical Calculations: tests, intervals, distributions

• List-Based STAT Data Editor

Programming & Learning

• Built-in Python Support (MicroPython v1.9.4, adapted for calculator use)

  • Encourages algorithmic thinking

  • Ideal for education and learning programming fundamentals

• BASIC-like Programming Language

• Program Capacity: 62,000 bytes (user memory), plus 3 MB storage memory

Python is a registered trademark of the Python Software Foundation. Note: MicroPython differs from full desktop Python.

Connectivity & Compatibility

• USB cable included: Easy file transfers between calculator and PC

• Direct projector connection for classroom use

• Supports communication with other calculators

• Data Logger support for math, science, and technology education

Exam Ready

• Examination Mode ensures compliance with test standards

• Approved for use in: AP, SAT, SAT Subject, PSAT/NMSQT, ACT, IB, and other major exams

Specifications

Basic Information

• Type: Programmable, Graphing, Financial

• Number of Functions: 2,900+

• Digits: 10 + 2

• Display: Dot Matrix LCD with Backlight, Natural Textbook Display

• Keys: Plastic

Memory

• 28 Memory Slots

• Answer Memory

• Add-In Function Support

• Memory Protection

• Reset Function

Power

• Supply: 4 × AAA batteries (R03)

• Battery Life: Approx. 230 hours

• Auto Power Off: Yes

Dimensions & Weight

• Size (D × W × H): 175.5 × 83.5 × 18.7 mm

• Weight: 190 g

• Accessories: USB Cable, Hard Case

Display Settings

• Number Formats: Fix, Sci, Norm

• Engineering Symbols & Notation

• Fraction/Decimal Conversion

Calculation Functions

Basic:

• Arithmetic, Brackets, Fractions, Reciprocal, Percent, Factorials

• π, Square Root, Rounding

• Degree/Minute/Second (Sexagesimal)

Advanced:

• Powers & Roots (square, cube, nth)

• Exponential (e)

• Trigonometric, Inverse Trigonometric

• Hyperbolic & Inverse Hyperbolic

• Logarithms (base 10 & custom base)

• Coordinate Conversion

• GCD/LCM, Integer Part Function

• Combination & Permutation

• Random Numbers (real & integer)

• Summation

• Complex Numbers, Vectors, Matrices

• Differential & Integral Calculations

• Base-n Calculations & Logical Operators

Applied:

• Multi-statement commands (: / ◢)

• Continuous Calculation

• Replay & Multi-Replay Functions

• UNDO, COPY & PASTE

• CALC & SOLVE Functions

Financial:

• Compound Interest Calculations

• Day Calculations

Additional Functions

• Spreadsheet Application

• Geometry Application

• Recursion

• Physics & Chemistry Tools (Metric Conversion, Periodic Table)

Peripheral Device Support

• Connect to other calculators

• PC communication (USB cable included)

• Projector compatibility

• Data Logger support

✨ In short: the fx-9860GIII is not just a calculator—it’s a full learning, graphing, and programming tool built for both classroom and professional use.