1. Kupu Whakataki
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. Te Timata
2.1. Tāuta Pūhiko
The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:
- Me mohio kua weto te tatauranga.
- Kimihia te uhi o te wahanga pākahiko kei muri o te tatauranga.
- Remove the cover using a small screwdriver.
- Insert two new LR44 batteries, observing the correct polarity (+/-).
- Whakakapihia te uhi o te wahanga pākahiko kia mau.
Tuhipoka: Always use fresh batteries and dispose of old batteries responsibly.
2.2. Te Whakaka me te Whakaweto
- Hei whakakā i te tātaitai, pēhia te ON/C pātene.
- To turn off the calculator, press the Te Whare Tuarua patene whai muri i te WATE pātene.
2.3. Whakaatu Atuview
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. Nga Mahi Taketake
3.1. Arithmetic Calculations
Perform basic arithmetic operations using the number keys and the +, -, ×, a ÷ mau taviri. Perehi = hei whakaatu i te hua.
- Example: Hei tātai 15 + 7: Pēhia 1 5 + 7 =. Ka whakaatu te whakaaturanga 22.
3.2. Clear Functions
- Perehi CE to clear the last entered number or operation.
- Perehi ON/C to clear all entries and reset the calculator to its initial state (except memory).
4. Ngā Mahi Pūtaiao
The calculator provides 131 built-in functions. Many keys have secondary functions, accessed by pressing the Te Whare Tuarua key before the desired function key.
4.1. Trigonometric Functions
Whakamahi hara, cos, tan for standard trigonometric calculations. Their inverse functions (hara-1, cos-1, tan-1) are accessed via Te Whare Tuarua.
The angle unit can be changed using the DRG kī. Perehi DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).
4.2. Logarithmic and Exponential Functions
- Logarithms: Whakamahi rangitaki (turanga 10) me ln (te taupūngao tūturu).
- Exponentials: Whakamahi 10x (i uru atu mā Te Whare Tuarua a rangitaki) me ex (i uru atu mā Te Whare Tuarua a ln).
4.3. Powers and Roots
- Tapawhā: Whakamahi x2.
- Putake tapawha: Whakamahi √ (i uru atu mā Te Whare Tuarua a x2).
- Mana Whanui: Whakamahi yx.
- Reciprocal: Whakamahi 1/x (i uru atu mā Te Whare Tuarua a yx).
4.4. Factorials
Calculate factorials using the n! function (accessed via Te Whare Tuarua a CPLX).
5. Nga Mahi Arā Atu Anō
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, →PUNA, →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".
Whakamahia te CD RARAUnga 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 Te Whare Tuarua.
5.4. Nga Mahi Mahara
The calculator has one independent memory. Use the following keys:
- M+: Ka taapiri i te uara kua whakaatuhia ki te mahara.
- STO: Stores the displayed value into memory.
- RCL: Recalls the value from memory to the display.
6. Tiaki me te Tiaki
6.1. Te horoi
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 ranei nga waahanga o roto.
6.2. Rokiroki
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. Te Raru
7.1. Nga take noa
- Calculator does not turn on: Tirohia te tāutanga o te pākahiko, kia mōhio ai kāore ngā pākahiko e pau. Whakakapia ngā pākahiko mēnā e tika ana.
- "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 WHAKATURU 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. Whakatakotoranga

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.
| Āhuahira | Taipitopito |
|---|---|
| Tau tauira | EL501X2BWH |
| Momo Tatau | Hangarau/Putaiao |
| Whakaatu | 10-digit, 1-line LCD |
| Te maha o nga Mahi | 131 |
| Puna Mana | Battery Powered (2 x LR44 included) |
| Maharahara | 1 independent memory |
| Ahu (WxHxD) | 3.1 x 5.7 x 0.5 inihi (tata) |
| Taumaha Tūemi | 3.84 hekere |
| Nga Mahi Motuhake | N-base Calculation (HEX, DEC, BIN, OCT), Complex Number Calculation, 1-Variable Statistics |
9. Pūtāhui me te Tautoko
This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp webpaetukutuku, whakapā atu ranei ki ta raatau tari ratonga kaihoko.
You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.





