1. Ifihan
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. Bibẹrẹ
2.1. Fifi sori batiri
The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:
- Rii daju pe ẹrọ iṣiro ti wa ni pipa.
- Wa ideri iyẹwu batiri ni ẹhin ẹṣiro naa.
- Remove the cover using a small screwdriver.
- Insert two new LR44 batteries, observing the correct polarity (+/-).
- Rọpo ideri iyẹwu batiri ni aabo.
Akiyesi: Always use fresh batteries and dispose of old batteries responsibly.
2.2. Titan ati Pa a
- Lati tan ẹrọ iṣiro, tẹ awọn ON/C bọtini.
- To turn off the calculator, press the 2nd F bọtini atẹle nipa awọn PAA bọtini.
2.3. Ifihan Loriview
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. Awọn iṣẹ ipilẹ
3.1. Arithmetic Calculations
Perform basic arithmetic operations using the number keys and the +, -, ×, ati ÷ awọn bọtini. Tẹ = lati ṣafihan abajade.
- Example: Lati ṣe iṣiro 15 + 7: Tẹ 1 5 + 7 =. Iboju naa yoo han 22.
3.2. Clear Functions
- Tẹ CE to clear the last entered number or operation.
- Tẹ 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
Lo ese, kos, tan for standard trigonometric calculations. Their inverse functions (ese-1, kos-1, tan-1) are accessed via 2nd F.
The angle unit can be changed using the DRG bọtini. Tẹ DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).
4.2. Logarithmic and Exponential Functions
- Logarithms: Lo wọle (mimọ 10) ati ln (logarithm adayeba).
- Exponentials: Lo 10x (wọlé nípasẹ̀ 2nd F ati wọle) ati ex (wọlé nípasẹ̀ 2nd F ati ln).
4.3. Powers and Roots
- onigun mẹrin: Lo x2.
- Gbongbo onigun: Lo √ (wọlé nípasẹ̀ 2nd F ati x2).
- Agbara gbogbogbo: Lo yx.
- Reciprocal: Lo 1/x (wọlé nípasẹ̀ 2nd F ati yx).
4.4. Factorials
Calculate factorials using the n! iṣẹ́ (tí a lè wọlé sí nípasẹ̀ 2nd F ati CPLX).
5. Awọn iṣẹ ilọsiwaju
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 Iṣiro. The display will show "STAT".
Lo awọn 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. Awọn iṣẹ iranti
The calculator has one independent memory. Use the following keys:
- M+: Ṣe afikun iye ti o han si iranti.
- STO: Stores the displayed value into memory.
- RCL: Recalls the value from memory to the display.
6. Itọju ati Itọju
6.1. Ninu
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 tabi ti abẹnu irinše.
6.2. Ibi ipamọ
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. Laasigbotitusita
7.1. Awọn ọrọ ti o wọpọ
- Ẹrọ iṣiro ko tan: Ṣàyẹ̀wò bí a ṣe ń fi bátìrì sí i kí o sì rí i dájú pé bátìrì náà kò ti tán. Rọpò bátìrì tí ó bá pọndandan.
- "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 Tunto 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. Awọn pato

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.
| Ẹya ara ẹrọ | Ẹ̀kúnrẹ́rẹ́ |
|---|---|
| Nọmba awoṣe | EL501X2BWH |
| Oniṣiro Iru | Imọ-ẹrọ / Imọ |
| Ifihan | 10-digit, 1-line LCD |
| Nọmba ti Awọn iṣẹ | 131 |
| Orisun agbara | Battery Powered (2 x LR44 included) |
| Iranti | 1 independent memory |
| Awọn iwọn (WxHxD) | 3.1 x 5.7 x 0.5 inches (isunmọ) |
| Iwọn Nkan | 3.84 iwon |
| Awọn iṣẹ pataki | N-base Calculation (HEX, DEC, BIN, OCT), Complex Number Calculation, 1-Variable Statistics |
9. Atilẹyin ọja ati Support
This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp webojula tabi kan si wọn onibara iṣẹ Eka.
You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.