Casio Graphing Calculator (FX-CG50AU)

Casio FX-CG50AU Colour Graphing Calculator

Explore mathematics, statistics and scientific concepts visually with the Casio FX-CG50AU Graphing Calculator. Designed for senior secondary and university-level study, this programmable non-CAS calculator combines an easy-to-navigate icon menu with a high-resolution colour display for clear graphs, tables, equations and statistical data. Casio lists more than 2,900 available functions across its calculation and graphing modes.

The 384 × 216-dot backlit display uses natural textbook formatting, allowing fractions, roots and other mathematical expressions to appear closer to the way they are written in books. Colour coding can make multiple graphs and datasets easier to distinguish during classroom work, homework and exam preparation.

Advanced graphing tools support rectangular, polar, parametric, inequality, conic-section, recursion and dynamic graphs. The built-in 3D Graph application can display spheres, cylinders, planes and lines, with tools for zooming, rotating and exploring cross-sections.

The calculator also supports one-variable and two-variable statistics, regression analysis, probability distributions, hypothesis tests, confidence intervals, spreadsheets, matrices, vectors, complex numbers, simultaneous equations and polynomial equations. Python and Casio BASIC programming functions are available, depending on the installed operating-system version.

USB connectivity allows compatible data, programs and calculator files to be transferred between the calculator and a computer. Casio identifies the FX-CG50AU as supporting USB mass-storage functionality, while its three-pin serial connection can be used for compatible calculator-to-calculator transfers.

Key Features

• Australian FX-CG50AU graphing-calculator model
• Programmable non-CAS calculator
• High-resolution colour display with backlight
• Natural textbook input and output
• More than 2,900 functions
• Two-dimensional and three-dimensional graphing
• Rectangular, polar and parametric graphs
• Dynamic, recursion and inequality graphing
• Statistical plots and regression calculations
• Z, t, chi-square, F and ANOVA testing functions
• Matrix, vector and complex-number calculations
• Spreadsheet and probability-simulation applications
• Python and Casio BASIC programming support
• USB computer connectivity
• Dedicated examination mode
• Slide-on protective hard cover

Technical Specifications

• Model: FX-CG50AU
• Calculator type: Programmable colour graphing, non-CAS
• Display resolution: 384 × 216 dots
• Display capacity: 21 characters × 8 lines
• Internal operation: 15 digits
• Variables: 28
• Program capacity: Up to 61,000 bytes
• FX-CG50AU storage memory: Up to 4.5MB
• Connections: USB 2.0 and three-pin serial port
• Power source: Four AAA alkaline or compatible Ni-MH batteries
• Typical alkaline battery life: Approximately 170 hours
• Dimensions: 188.5 × 89 × 18.6mm
• Weight: Approximately 230g with batteries

Examination Mode

The built-in examination mode temporarily restricts access to selected memory, programs, functions and applications. Calculator permission differs between schools, universities and examination authorities, so students should confirm the current requirements before taking it into an examination.

Package Contents

Standard package contents may include:

• Casio FX-CG50AU graphing calculator
• Slide-on protective hard cover
• USB cable
• Four AAA batteries
• Quick Start Guide
• Three-pin communication cable in selected regional packages

Package contents may vary by supplier and region.

Important Model Information

Casio Education Australia now lists the FX-CG50AU as discontinued and recommends the newer FX-1AU GRAPH as its replacement from 2026. This listing is for the original FX-CG50AU model, which remains usable and continues to receive compatible support resources and operating-system downloads.