1. Introduction
This manual provides essential instructions for the proper use and maintenance of your Casio GRAPH35+EII graphing calculator. The GRAPH35+EII is designed for advanced mathematical and scientific calculations, featuring an 8-line screen, natural 2D writing, and Python programming capabilities. Please read this manual thoroughly to ensure optimal performance and longevity of your device.
Image 1.1: The Casio GRAPH35+EII graphing calculator shown in its retail packaging.
2. Important Safety Information
Observe the following safety precautions to prevent damage to the calculator or personal injury.
- Do not attempt to disassemble or modify the calculator.
- Avoid exposing the calculator to extreme temperatures, direct sunlight, or high humidity.
- Keep the calculator away from water and other liquids.
- Use only the specified battery type (AAA) and ensure correct polarity during installation.
- Dispose of batteries according to local regulations.
3. Initial Setup
3.1 Unpacking
Carefully remove the calculator and all accessories from the packaging. Verify that all components are present: the calculator unit, protective cover, and this instruction manual.
3.2 Battery Installation
The Casio GRAPH35+EII requires four AAA batteries for operation. Batteries are typically included with the new product.
- Ensure the calculator is turned off.
- Slide off the protective cover from the back of the calculator.
- Locate the battery compartment cover.
- Remove the battery compartment cover.
- Insert four AAA batteries, paying close attention to the positive (+) and negative (-) terminals as indicated inside the compartment.
- Replace the battery compartment cover and then the protective cover.
Image 3.1: The Casio GRAPH35+EII calculator with its blue protective cover detached, revealing the back panel where the battery compartment is located.
3.3 Initial Power On
Press the [ON] button to turn on the calculator. The initial setup screen may appear, prompting you to select a language or perform other basic configurations. Follow the on-screen instructions.
4. Operating Instructions
4.1 Keypad Layout
The calculator features a standard scientific keypad with additional function keys for graphing and programming. Familiarize yourself with the key layout for efficient operation.
Image 4.1: A detailed view of the Casio GRAPH35+EII calculator's screen displaying a graph function input, and its full keypad with various mathematical, function, and navigation buttons.
4.2 Navigating Menus
Use the directional pad (up, down, left, right arrows) to navigate through menus and input fields. The [EXE] key confirms selections, and the [EXIT] key returns to the previous screen or menu.
4.3 Graphing Functions
To access graphing functions, press the [MENU] key and select the 'GRAPH' icon. You can input equations in the Y= editor, set window parameters, and then draw graphs. Use the [F1] to [F6] function keys for specific graphing operations like Trace, Zoom, and G-Solve.
4.4 Python Programming
The GRAPH35+EII supports Python programming. To access the Python environment, navigate to the 'PROGRAM' menu. Here you can write, edit, and execute Python scripts. Regular operating system updates may add new features and improve Python functionality.
4.5 Data Transfer
The calculator can connect to a computer via a USB cable for data transfer. This allows for copying programs, data, and updating the operating system. Refer to the Casio website for specific software and driver requirements.
5. Maintenance
5.1 Cleaning
To clean the calculator, use a soft, dry cloth. For stubborn dirt, lightly dampen the cloth with water and wipe gently. Do not use abrasive cleaners, solvents, or alcohol, as these can damage the casing and screen.
5.2 Battery Replacement
When the display becomes dim or the calculator operates erratically, it is time to replace the batteries. Follow the battery installation steps outlined in Section 3.2. Always replace all four AAA batteries at the same time with new ones.
5.3 Storage
When storing the calculator for extended periods, remove the batteries to prevent leakage and potential damage. Store the calculator in a cool, dry place, away from direct sunlight and extreme temperatures.
6. Troubleshooting
If you encounter issues with your calculator, refer to the following common problems and solutions:
- Calculator does not turn on: Check battery installation and ensure batteries are fresh.
- Screen is blank or dim: Replace batteries. Adjust display contrast if available in settings.
- Incorrect calculation results: Verify input values and ensure the correct mode (e.g., Degree/Radian) is selected. Perform a soft reset if necessary (refer to the full manual on the Casio website for reset procedures).
- Calculator freezes: Press the [RESET] button (usually a small button on the back, requiring a thin object like a paperclip) or remove and reinsert batteries. Note that a reset may clear memory.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | Graph 35+E II |
| Product Dimensions | 6.89 x 3.27 x 0.71 inches |
| Item Weight | 6.7 ounces |
| Power Source | 4 AAA batteries (included) |
| Display | 8-line screen with natural 2D writing |
| Programming Language | Python |
| Connectivity | USB for data transfer |
8. Warranty and Support
8.1 Warranty Information
Your Casio GRAPH35+EII calculator is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Casio website for detailed terms and conditions specific to your region.
8.2 Customer Support
For further assistance, technical support, or to download the full detailed manual, please visit the official Casio website or contact their customer service department. Contact information can typically be found on the Casio website or in your product packaging.
