Manual de instrucțiuni pentru calculatorul științific/tehnic Sharp EL501X2BWH

1. Introducere

This manual provides detailed instructions for the operation and maintenance of your Sharp EL501X2BWH Engineering/Scientific Calculator. Designed for students and professionals, this calculator performs over 130 scientific and mathematical functions, making it suitable for general math, pre-algebra, algebra, and trigonometry. Please read this manual thoroughly to understand all features and ensure proper use.

Image 1.1: The Sharp EL501X2BWH Scientific Calculator, displaying its keys and single-line LCD screen.

2. Noțiuni introductive

2.1. Instalarea bateriei

The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:

1. Asigurați-vă că calculatorul este oprit.
2. Localizați capacul compartimentului bateriilor de pe spatele calculatorului.
3. Remove the cover using a small screwdriver.
4. Insert two new LR44 batteries, observing the correct polarity (+/-).
5. Puneți bine capacul compartimentului bateriei.

Nota: Folosiți întotdeauna baterii noi și aruncați bateriile vechi în mod responsabil.

2.2. Pornirea și oprirea

• Pentru a porni calculatorul, apăsați butonul ON/C buton.
• Pentru a opri calculatorul, apăsați butonul A doua linie de atac butonul urmat de OFF buton.

2.3. Afișare pesteview

The calculator features a 10-digit, 1-line LCD display. Indicators for various modes (e.g., DEG, RAD, GRAD, CPLX, STAT) will appear on the display to show the current calculator state.

Image 2.1: Close-up of the calculator's 10-digit LCD display and the reset button location.

3. Operații de bază

3.1. Arithmetic Calculations

Perform basic arithmetic operations using the number keys and the +, -, ×, și ÷ chei. presa = pentru a afișa rezultatul.

• Examppe: Pentru a calcula 15 + 7: Apăsați 1 5 + 7 =. Afișajul va afișa 22.

3.2. Clear Functions

• Presa CE to clear the last entered number or operation.
• Presa ON/C to clear all entries and reset the calculator to its initial state (except memory).

4. Funcții științifice

The calculator provides 131 built-in functions. Many keys have secondary functions, accessed by pressing the A doua linie de atac key before the desired function key.

4.1. Trigonometric Functions

Utilizare păcat, cos, bronzat for standard trigonometric calculations. Their inverse functions (păcat^-1, cos^-1, bronzat^-1) sunt accesate prin A doua linie de atac.

The angle unit can be changed using the DRG cheie. Presa DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).

4.2. Logarithmic and Exponential Functions

• Logarithms: Utilizare jurnal (baza 10) și ln (logaritm natural).
• Exponentials: Utilizare 10^x (accesat prin A doua linie de atac şi jurnal) și e^x (accesat prin A doua linie de atac şi ln).

4.3. Powers and Roots

• Pătrat: Utilizare x².
• Rădăcină pătrată: Utilizare √ (accesat prin A doua linie de atac şi x²).
• Putere generala: Utilizare y^x.
• Reciprocal: Utilizare 1/x (accesat prin A doua linie de atac şi y^x).

4.4. Factorials

Calculate factorials using the n! function (accessed via A doua linie de atac şi CPLX).

5. Funcții avansate

5.1. N-Base Calculations (HEX, DEC, BIN, OCT)

The calculator supports calculations in different number bases: hexadecimal (HEX), decimal (DEC), binary (BIN), and octal (OCT). Use the dedicated keys for these operations, typically found above the number keys (e.g., →OCT, →BIN, →DEC, →HEX).

Image 5.1: The calculator's keypad, showing various scientific and N-base function keys.

5.2. Complex Number Calculations

To enter and perform calculations with complex numbers, switch to Complex Mode. Press CPLX to activate this mode. The display will show "CPLX".

Refer to the calculator's key markings for specific complex number operations (e.g., real and imaginary part extraction, argument, magnitude).

5.3. Statistics Functions

The calculator supports one-variable statistical calculations. To enter Statistics Mode, press STAT. The display will show "STAT".

Utilizați CD de date key to clear statistical data and the M+ key to input data points. Statistical results (mean, standard deviation, etc.) can be retrieved using specific function keys, often accessed via A doua linie de atac.

5.4. Funcții de memorie

The calculator has one independent memory. Use the following keys:

• M+: Adds the displayed value to the memory.
• STO: Stores the displayed value into memory.
• RCL: Recalls the value from memory to the display.

6. Întreținere și îngrijire

6.1. Curatenie

To clean the calculator, wipe it with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the calculator, as this may damage the casing sau componente interne.

6.2. Depozitare

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

Image 6.1: The Sharp EL501X2BWH calculator with its protective slide-on cover, which also features basic instructions.

7. Depanare

7.1. Probleme comune

• Calculatorul nu pornește: Verificați instalarea bateriilor și asigurați-vă că bateriile nu sunt descărcate. Înlocuiți bateriile dacă este necesar.
• "Error" message displayed: This usually indicates an invalid operation (e.g., division by zero, taking the square root of a negative number). Press CE or ON/C to clear the error and re-enter the calculation.
• Rezultate incorecte: Verify that the correct mode (DEG/RAD/GRAD, Normal/Stat/Complex) is selected for your calculation. Ensure all previous calculations are cleared using ON/C before starting a new one.

7.2. Resetting the Calculator

If the calculator behaves erratically or freezes, a reset may resolve the issue. Locate the RESET button (a small recessed button, often requiring a thin object like a paperclip to press) on the back or front panel. Pressing this button will clear all memory and settings, returning the calculator to its factory default state.

8. Specificații

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.

9. Garanție și asistență

This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp website-ul sau contactați departamentul de servicii pentru clienți.

You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.