1. ആമുഖം
This manual provides detailed instructions for the proper use and maintenance of your Sharp Scientific Calculator EL-546XTB-SL. Designed for students and professionals, this calculator features Direct Algebraic Logic (D.A.L.) for intuitive input and display, along with a wide range of scientific, statistical, and equation-solving functions. Please read this manual thoroughly to maximize the calculator's capabilities.

This image displays the Sharp EL-546XTB-SL Scientific Calculator. It features a black casing, a two-line LCD display showing '1234567890', and a comprehensive keypad. Key sections include numeric input, arithmetic operations, scientific functions (sin, cos, tan, log, ln), mode selection, and memory functions. The solar panel is visible at the top.
2. സജ്ജീകരണം
2.1 പവർ സ്രോതസ്സ്
The EL-546XTB-SL calculator is twin-powered, operating on both solar energy and a lithium-ion battery. Under sufficient lighting, the calculator will primarily use solar power. In low-light conditions, it automatically switches to battery power. The battery is pre-installed and typically does not require immediate replacement.
2.2 പ്രാരംഭ പവർ ഓൺ
- അമർത്തുക ഓൺ/സി key located in the upper right corner of the keypad to turn on the calculator.
- The display will show '0' or the last calculated result.
- If the display is dim or blank, ensure the calculator is exposed to adequate light or consider battery replacement if issues persist after prolonged use.
3. പ്രവർത്തന നിർദ്ദേശങ്ങൾ
3.1 Direct Algebraic Logic (D.A.L.)
The EL-546XTB-SL utilizes Direct Algebraic Logic (D.A.L.), allowing you to input equations exactly as they are written. This simplifies complex calculations by displaying expressions and results in a natural format.
3.2 അടിസ്ഥാന ഗണിത പ്രവർത്തനങ്ങൾ
അടിസ്ഥാന കണക്കുകൂട്ടലുകൾ നടത്താൻ:
- Enter the first number.
- Press the desired operation key (+, -, ×, ÷).
- Enter the second number.
- അമർത്തുക = ഫലം പ്രദർശിപ്പിക്കാൻ.
3.3 Using Secondary Functions (2nd F) and Alpha Functions (ALPHA)
- അമർത്തുക 2nd എഫ് (second function) to access the orange-colored functions printed above certain keys. For example, to calculate sin-1, അമർത്തുക 2nd എഫ് പിന്നെ പാപം.
- അമർത്തുക ആൽഫ to access the light blue-colored variables or functions printed above certain keys. This is often used for memory recall or specific modes.
3.4 മോഡ് തിരഞ്ഞെടുക്കൽ
The calculator offers 6 operational modes. Press the മോഡ് key to cycle through or select a specific mode:
- സാധാരണ: സ്റ്റാൻഡേർഡ് ഗണിത, ശാസ്ത്രീയ കണക്കുകൂട്ടലുകൾ.
- STAT: Statistical calculations (1-variable and 2-variable).
- COMPLEX: Calculations involving complex numbers.
- മാട്രിക്സ്: Matrix operations.
- പട്ടിക: List-based calculations.
- EQUATION: Solves quadratic, cubic, and 3-variable linear equations.
3.5 മെമ്മറി പ്രവർത്തനങ്ങൾ
The calculator includes 8 temporary memory buttons and 4 formula memory buttons. Use STO (Store) and ആർസിഎൽ (Recall) keys in conjunction with variable keys (A, B, C, D, X, Y, M, etc.) to manage stored values.
3.6 Equation Solvers
In സമവാക്യം mode, you can solve:
- Quadratic equations (ax2 + bx + c = 0)
- Cubic equations (ax3 + bx2 + cx + d = 0)
- 3-variable linear equations (e.g., ax + by + cz = d)
Follow the on-screen prompts to input coefficients.
3.7 Statistical Calculations
In STAT mode, you can perform 1-variable and 2-variable statistical analyses. Use the DATA CD key to input data and access statistical results like mean, standard deviation, and regression analysis.
3.8 Physical Constants and Metric Conversions
The calculator includes a library of physical constants and metric conversion functions. Refer to the calculator's key markings and the 2nd എഫ് or ആൽഫ functions for specific access methods.
4. കീ ഫംഗ്ഷനുകൾ കഴിഞ്ഞുview
The EL-546XTB-SL keypad is organized for efficient use. Below is a general overview of key groups:
- Numeric Keys (0-9, .): നമ്പറുകൾ ഇൻപുട്ട് ചെയ്യുന്നതിന്.
- Arithmetic Operators (+, -, ×, ÷, =): For basic calculations.
- Function Keys (sin, cos, tan, log, ln, x², √, etc.): For scientific and mathematical operations.
- Mode Keys (MODE, HOME): To select operational modes and return to the home screen.
- Modifier Keys (2nd F, ALPHA): To access secondary and alpha functions.
- Memory Keys (STO, RCL, M+, M-): For storing and recalling values.
- Navigation Keys (Arrow keys): To move the cursor on the display for editing expressions.
- Clear/Delete Keys (ON/C, DEL, INS): To clear entries, delete characters, or insert characters.
5. പരിപാലനം
5.1 വൃത്തിയാക്കൽ
To clean the calculator, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the casing അല്ലെങ്കിൽ ആന്തരിക ഘടകങ്ങൾ.
5.2 സംഭരണം
ഉപയോഗത്തിലില്ലാത്തപ്പോൾ, പോറലുകളും കേടുപാടുകളും തടയാൻ കാൽക്കുലേറ്റർ അതിന്റെ സംരക്ഷിത ഹാർഡ് കേസിൽ സൂക്ഷിക്കുക. കാൽക്കുലേറ്റർ തീവ്രമായ താപനില, ഈർപ്പം അല്ലെങ്കിൽ നേരിട്ടുള്ള സൂര്യപ്രകാശം എന്നിവയിൽ ദീർഘനേരം തുറന്നുകാട്ടുന്നത് ഒഴിവാക്കുക.
5.3 ബാറ്ററി വിവരങ്ങൾ
The calculator uses one Lithium Ion battery (included). While the calculator is twin-powered, the battery provides backup power. If the display becomes consistently dim even in good lighting, or if the calculator fails to power on, the battery may need replacement. Consult a qualified technician for battery replacement to avoid damaging the device.
6. പ്രശ്നപരിഹാരം
- ഡിസ്പ്ലേ ശൂന്യമോ മങ്ങിയതോ ആണ്: Ensure adequate lighting for solar power. If the issue persists, the battery may be low or depleted.
- Calculator does not respond: അമർത്തുക ഓൺ/സി key. If unresponsive, locate the പുനഃസജ്ജമാക്കുക button (often a small hole requiring a thin object like a paperclip) and press it gently. This will clear all memory and settings.
- Incorrect results: Check the current mode (e.g., DEG/RAD, NORMAL/STAT). Ensure correct input syntax, especially with parentheses. A reset may resolve persistent calculation errors.
- പിശക് സന്ദേശങ്ങൾ: Refer to the calculator's on-screen error codes (if any) for specific meanings. Common errors include 'MATH ERROR' (invalid operation) or 'SYNTAX ERROR' (incorrect input format).
7 സ്പെസിഫിക്കേഷനുകൾ
- മോഡലിൻ്റെ പേര്: EL-546XTB-SL
- ബ്രാൻഡ്: മൂർച്ചയുള്ള
- ഡിസ്പ്ലേ തരം: LCD, 2-line
- ഊർജ്ജ സ്രോതസ്സ്: Twin Powered (Solar & Battery)
- ബാറ്ററി തരം: ലിഥിയം അയോൺ (1 ഉൾപ്പെടുത്തിയിരിക്കുന്നു)
- മെറ്റീരിയൽ: പ്ലാസ്റ്റിക്
- അളവുകൾ: Approximately 3-5/16"W × 5-5/16"H × 5/8"D (8.4 cm W × 13.5 cm H × 1.6 cm D)
- ഭാരം: ഏകദേശം 160 ഗ്രാം
- പ്രധാന സവിശേഷതകൾ: Direct Algebraic Logic (D.A.L.), 6 Modes (Normal, Stat, Complex, Matrix, List, Equation), 8 Temporary & 4 Formula Memory Buttons, Quadratic & Cubic Equation Solvers, 3 Variable Linear Equation Solvers, 1 & 2 Variable Statistics, Physical Constants & Metric Conversions.





