1. Sarrera
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. Hasteko
2.1. Bateriaren instalazioa
The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:
- Ziurtatu kalkulagailua itzalita dagoela.
- Bilatu kalkulagailuaren atzealdean dagoen bateriaren konpartimentuaren estalkia.
- Remove the cover using a small screwdriver.
- Insert two new LR44 batteries, observing the correct polarity (+/-).
- Jarri bateriaren konpartimenduaren estalkia ongi.
Oharra: Always use fresh batteries and dispose of old batteries responsibly.
2.2. Piztu eta itzaltzea
- Kalkulagailua pizteko, sakatu tekla ON/C botoia.
- To turn off the calculator, press the 2nd F botoia eta ondoren OFF botoia.
2.3. Erakutsi baino gehiagoview
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. Oinarrizko Eragiketak
3.1. Arithmetic Calculations
Perform basic arithmetic operations using the number keys and the +, -, ×, eta ÷ giltzak. Sakatu = emaitza bistaratzeko.
- Example: To calculate 15 + 7: Press 1 5 + 7 =. Pantailak 22 erakutsiko ditu.
3.2. Clear Functions
- Sakatu CE to clear the last entered number or operation.
- Sakatu ON/C to clear all entries and reset the calculator to its initial state (except memory).
4. Scientific Functions
The calculator provides 131 built-in functions. Many keys have secondary functions, accessed by pressing the 2nd F key before the desired function key.
4.1. Trigonometric Functions
Erabili bekatua, cos, beltzarana for standard trigonometric calculations. Their inverse functions (bekatua-1, cos-1, beltzarana-1) are accessed via 2nd F.
The angle unit can be changed using the DRG giltza. Sakatu DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).
4.2. Logarithmic and Exponential Functions
- Logarithms: Erabili erregistroa (base 10) and ln (natural logarithm).
- Exponentials: Erabili 10x (accessed via 2nd F eta erregistroa) eta ex (accessed via 2nd F eta ln).
4.3. Powers and Roots
- Plaza: Erabili x2.
- Erro karratua: Erabili √ (accessed via 2nd F eta x2).
- Potentzia orokorra: Erabili yx.
- Reciprocal: Erabili 1/x (accessed via 2nd F eta yx).
4.4. Factorials
Calculate factorials using the n! function (accessed via 2nd F eta CPLX).
5. Funtzio aurreratuak
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".
Erabili DATA CD 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 2nd F.
5.4. Memoriaren funtzioak
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. Mantentzea eta Zainketa
6.1. Garbiketa
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 edo barne osagaiak.
6.2. Biltegiratzea
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. Arazoak
7.1. Arazo arruntak
- Calculator does not turn on: Egiaztatu bateriaren instalazioa eta ziurtatu bateriak ez daudela agortuta. Ordeztu bateriak beharrezkoa bada.
- "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.
- Incorrect results: 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 Berrezarri 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. Zehaztapenak

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.
| Ezaugarri | Xehetasuna |
|---|---|
| Modelo zenbakia | EL501X2BWH |
| Kalkulagailu mota | Ingeniaritza/Zentifikoa |
| Bistaratzea | 10-digit, 1-line LCD |
| Funtzio kopurua | 131 |
| Energia iturria | Battery Powered (2 x LR44 included) |
| Memoria | 1 independent memory |
| Neurriak (WxHxD) | 3.1 x 5.7 x 0.5 hazbete (gutxi gorabehera) |
| Elementuaren pisua | 3.84 ontza |
| Funtzio bereziak | N-base Calculation (HEX, DEC, BIN, OCT), Complex Number Calculation, 1-Variable Statistics |
9. Bermea eta Laguntza
This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp webwebgunean edo jarri harremanetan bere bezeroarentzako arreta zerbitzuarekin.
You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.





