1. Selelekela
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. Ho Qala
2.1. Ho kenya Battery
The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:
- Netefatsa hore khalkhuleita e timme.
- Fumana sekoahelo sa karolo ea betri ka morao ho khalkhuleita.
- Remove the cover using a small screwdriver.
- Insert two new LR44 batteries, observing the correct polarity (+/-).
- Kenya sebaka sa sekoaelo sa karolo ea betri ka mokhoa o sireletsehileng.
Hlokomela: Always use fresh batteries and dispose of old batteries responsibly.
2.2. Ho bulela le ho tima
- Ho bulela khalkhuleita, tobetsa ON/C konopo.
- To turn off the calculator, press the Karolo ea bobeli ea F konopo e lateloang ke TLOA konopo.
2.3. Hlahisa Holimview
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. Ts'ebetso ea Motheo
3.1. Arithmetic Calculations
Perform basic arithmetic operations using the number keys and the +, -, ×, le ÷ linotlolo. Tobetsa = ho bontsha sephetho.
- ExampLe: Ho bala 15 + 7: Tobetsa 1 5 + 7 =. Pontšo e tla bonts'a 22.
3.2. Clear Functions
- Tobetsa CE to clear the last entered number or operation.
- Tobetsa 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 Karolo ea bobeli ea F konopo pele ho konopo ya tshebetso eo o e batlang.
4.1. Trigonometric Functions
Sebelisa sebe, cos, tan for standard trigonometric calculations. Their inverse functions (sebe-1, cos-1, tan-1) li fihlelleha ka Karolo ea bobeli ea F.
The angle unit can be changed using the DRG senotlolo. Tobetsa DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).
4.2. Logarithmic and Exponential Functions
- Logarithms: Sebelisa log (motheo oa 10) le ln (logarithm ea tlhaho).
- Exponentials: Sebelisa 10x (accessed via Karolo ea bobeli ea F le log) le ex (accessed via Karolo ea bobeli ea F le ln).
4.3. Powers and Roots
- Sekwere: Sebelisa x2.
- Square Root: Sebelisa √ (accessed via Karolo ea bobeli ea F le x2).
- Kakaretso ea Matla: Sebelisa yx.
- Reciprocal: Sebelisa 1/x (accessed via Karolo ea bobeli ea F le yx).
4.4. Factorials
Calculate factorials using the n! function (accessed via Karolo ea bobeli ea F le CPLX).
5. Mesebetsi e tsoetseng pele
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 STATE. The display will show "STAT".
Sebelisa le CD ea Lintlha 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 Karolo ea bobeli ea F.
5.4. Mesebetsi ea Memori
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. Tlhokomelo le Tlhokomelo
6.1. Ho hloekisa
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 kapa likarolo tse ka hare.
6.2. Polokelo
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. Ho rarolla mathata
7.1. Mathata a Tloaelehileng
- Calculator does not turn on: Hlahloba ho kenngwa ha betri mme o netefatse hore dibetri ha di a fela. Kenya dibetri tse ding haeba ho hlokahala.
- "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 RETS'ELISITSOE 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. Litlhaloso

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.
| Sebopeho | Lintlha |
|---|---|
| Nomoro ea Mohlala | EL501X2BWH |
| Mofuta oa Calculator | Boenjiniere / Saense |
| Pontšo | 10-digit, 1-line LCD |
| Palo ea Mesebetsi | 131 |
| Mohloli oa Matla | Battery Powered (2 x LR44 included) |
| Mohopolo | 1 independent memory |
| Litekanyo (WxHxD) | 3.1 x 5.7 x 0.5 lisenthimithara (hoo e ka bang) |
| Boima ba Ntho | 3.84 lik'hilograma |
| Mesebetsi e Ikgethileng | N-base Calculation (HEX, DEC, BIN, OCT), Complex Number Calculation, 1-Variable Statistics |
9. Tiisetso le Tšehetso
This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp websebaka kapa ikopanye le lefapha la litšebeletso tsa bareki.
You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.





