1. مقدمه
This manual provides detailed instructions for the Sharp EL-W516TBSL Advanced Scientific Calculator. Designed for students and professionals, this calculator features a WriteView™ 4-line display, allowing expressions to be entered and displayed as they appear in textbooks. It offers 640 functions across 7 modes, including Normal, Statistics, Drill, Complex, Matrix, List, and Equation. The calculator operates on twin-power (solar with battery backup) and is built with a durable matte black finish and silver accents.

شکل 1: جلو view of the Sharp EL-W516TBSL calculator, showing its WriteView display and keypad layout.
2. راه اندازی اولیه
2.1 منبع تغذیه
The EL-W516TBSL calculator utilizes a twin-power system, combining solar power with a battery backup. In well-lit environments, the calculator primarily uses solar energy. The battery provides power when lighting is insufficient, ensuring continuous operation. No initial battery installation is typically required as the unit comes with a pre-installed battery.
2.2 روشن و خاموش کردن
- برای روشن کردن ماشین حساب، دکمه ON/C دکمه
- برای خاموش کردن ماشین حساب، را فشار دهید دوم اف به دنبال آن ON/C button. The calculator will also automatically power off after approximately 10 minutes of inactivity to conserve battery life.
3. Operating Modes and Key Functions
3.1 بنویسیدViewنمایشگر ™
نوشتنView™ display allows you to input and view mathematical expressions in a natural, textbook-like format. This feature simplifies complex calculations by presenting them clearly on the 4-line LCD.
۳.۱ عملکردهای کلیدی تمام شدview
The calculator's keypad is organized for efficient operation. Key categories include:
- Numeric Keys (0-9, .): For entering numbers.
- Operation Keys (+, -, ×, ÷): For basic arithmetic operations.
- کلیدهای عملکرد: Access various mathematical functions (e.g., sin, cos, tan, log, ln, square root, power). Many keys have secondary functions accessed by pressing دوم اف اول
- Memory Keys (STO, RCL, M+, M-): For storing and recalling values.
- Mode Key (MODE): To switch between the 7 operating modes.
- کلید صفحه اصلی: Allows users to return to the Normal Mode from any screen.

شکل ۲: زاویهدار view of the calculator, highlighting the display and key layout for various functions.
3.3 Advanced Functions and Modes
The EL-W516TBSL offers 640 functions and 7 distinct modes to handle a wide range of calculations:
- حالت عادی: Standard arithmetic and function calculations.
- STAT Mode: Statistical calculations, including mean, standard deviation, and regression analysis.
- DRILL Mode: Practice arithmetic and multiplication tables.
- COMPLEX Mode: Calculations involving complex numbers.
- حالت ماتریکس: Matrix operations, up to 4x4 matrices.
- LIST Mode: List-based data entry and calculations.
- EQUATION Mode: Solving linear equations and polynomial equations.
Refer to the full user guide for detailed instructions on using each mode and its specific functions.
۷. عملکردهای حافظه
The calculator includes 8 temporary memory buttons and 3 definable memory buttons for storing numerical values or expressions.
- Storing a Value (STO): Enter the value, press STO, then press the desired memory key (e.g., A, B, C).
- Recalling a Value (RCL): فشار دهید RCL, then press the desired memory key to retrieve the stored value.
- Adding to Memory (M+): مقدار نمایش داده شده را به حافظه مستقل اضافه میکند.
- Subtracting from Memory (M-): Subtracts the displayed value from the independent memory.
5. نگهداری و مراقبت
مراقبت مناسب، طول عمر و عملکرد بهینه ماشین حساب شما را تضمین میکند.
5.1 تمیز کردن
Wipe the calculator's exterior with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water and mild soap, then wipe dry immediately. Avoid using harsh chemicals, abrasive cleaners, or solvents.
5.2 ذخیره سازی
When not in use, store the calculator in a cool, dry place, away from direct sunlight and extreme temperatures. The included slide-on hard case protects the display and keys from damage.

شکل 3: پشت view of the calculator, showing the textured protective cover.
6 عیب یابی
If you encounter issues with your calculator, refer to the following common solutions:
6.1 مشکلات نمایش
- صفحه نمایش خالی: Ensure sufficient lighting for solar power. If the issue persists, the battery may be depleted.
- نمایشگر کمنور: Move to a brighter area. The display contrast might also be adjustable in the calculator's setup menu.
6.2 Calculation Errors
- "ERROR" Message: This typically indicates an invalid mathematical operation or syntax error. Review your input and the function's requirements.
- نتایج نادرست: Check the current operating mode (e.g., ensure you are in Normal mode for basic calculations, or the correct angle unit (DEG/RAD/GRAD) is selected).
۶.۱ تنظیم مجدد ماشین حساب
If the calculator behaves erratically, a soft reset may resolve the issue. Press the تنظیم مجدد button (usually a small recessed button on the back, requiring a thin object like a paperclip) or clear all memory via the M-CLR function (often دوم اف سپس M-CLR). Note that resetting will erase all stored data and settings.
7. مشخصات محصول
Key specifications for the Sharp EL-W516TBSL calculator:
- نام مدل: EL-W516TBSL
- ابعاد محصول: 6.6 x 3.1 x 0.6 اینچ
- وزن مورد: 0.24 اونس
- نوع نمایشگر: Large 16 Digit, 4 Line LCD with WriteView™
- تعداد توابع: 640
- حالت های عملیاتی: Normal, Stat, Drill, Complex, Matrix, List, Equation
- منبع تغذیه: Solar Powered with Battery Backup
- اولین تاریخ در دسترس: 22 مارس 2017

Figure 4: Dimensions of the Sharp EL-W516TBSL calculator.
8. گارانتی و پشتیبانی
For warranty information, please refer to the documentation included with your purchase or visit the official Sharp website. For further assistance, technical support, or to download the complete user manual in PDF format, please visit the manufacturer's support page or refer to the provided link:





