Casio FX-350ES Plus Scientific Calculator User Manual

Introduction

This manual provides detailed instructions for the proper use and maintenance of your Casio FX-350ES Plus Scientific Calculator. Please read this manual thoroughly to ensure correct operation and to maximize the calculator's functionality. Keep this manual for future reference.

Setup

1. Battery Installation

The Casio FX-350ES Plus calculator operates on a single AAA battery. To install or replace the battery:

1. Ensure the calculator is turned off.
2. Carefully remove the entire back cover of the calculator. This may require a small screwdriver.
3. Locate the battery compartment.
4. Insert one new AAA battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. Replace the back cover securely.

Note: The calculator is not solar-powered. Battery replacement requires removing the back panel.

2. Initial Power On

Press the [ON] button to turn on the calculator. The display should show a clear screen, ready for input.

Operating Instructions

1. Display and Input

The calculator features a Natural V.P.A.M. (Visually Perfect Algebraic Method) display, which allows mathematical expressions to be entered and displayed as they appear in textbooks. This includes fractions, roots, and other functions.

Image: Front view of the Casio FX-350ES Plus Scientific Calculator with its protective hard case. The calculator features a black body, a large LCD screen, and various function keys in blue, red, and white. The protective cover is grey and designed to slide over the calculator.

2. Mode Selection

Press the [MODE/SETUP] button to access different calculation modes. Use the arrow keys to navigate and [=] to select a mode. Common modes include:

• COMP (Compute): For general arithmetic calculations.
• STAT (Statistics): For statistical calculations.
• TABLE: For generating number tables from functions.

3. Basic Calculations

Enter numbers and operations using the numeric keypad and operator keys ([+], [-], [×], [÷]). Press [=] to obtain the result.

4. Trigonometric Functions

The calculator supports standard trigonometric functions. Use the [sin], [cos], and [tan] keys. To access inverse trigonometric functions (e.g., sin^-1), press [SHIFT] followed by the respective trigonometric key.

5. Two-Dimensional Statistics

In STAT mode, you can perform two-dimensional statistical calculations. Enter data pairs (x, y) and use the calculator's functions to compute mean, standard deviation, regression analysis, and more.

6. Automatic Fraction Calculations

The calculator allows for direct input and calculation with fractions. Use the [a b/c] key to enter mixed numbers or improper fractions. Results can often be displayed as fractions or decimals by pressing the [S↔D] key.

Maintenance

1. Cleaning

To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the casing or internal components.

2. Battery Replacement

Refer to the 'Battery Installation' section under Setup for detailed instructions on replacing the AAA battery. Replace the battery promptly when the display becomes dim or erratic to ensure continuous operation.

3. Storage

When not in use, store the calculator in its protective hard case to prevent damage from drops or scratches. Avoid exposing the calculator to extreme temperatures, humidity, or direct sunlight for extended periods.

Image: A hand holding the Casio FX-350ES Plus Scientific Calculator, illustrating its approximate dimensions. The image shows the calculator is approximately 6.6 inches (16 cm) in length.

Troubleshooting

• Display is blank or dim: Check the battery. Replace with a new AAA battery if necessary.
• Incorrect results: Ensure you are in the correct mode (e.g., COMP for general calculations). Check angle unit settings (degrees, radians, grads) by pressing [SHIFT] then [MODE/SETUP].
• Calculator freezes or behaves erratically: Try resetting the calculator. To perform a full reset, press [SHIFT] then [CLR] (Clear) and select 'All' to clear all memory and settings.

Specifications

Warranty and Support

For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Casio website. Keep your proof of purchase for warranty claims.

You can also visit the Casio Store on Amazon for additional product information and support resources.