1. Kupu Whakataki
This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-W531 Scientific Calculator. Please read this manual thoroughly before using the calculator to ensure correct operation and to maximize its functionality. The EL-W531 features a WriteView display, allowing for natural input and display of mathematical expressions, and offers 335 functions suitable for various scientific and engineering calculations.
2. Hua Neke Atuview
The Sharp EL-W531 is a scientific calculator designed for clarity and ease of use. It features a large WriteView dot-matrix display and a comprehensive set of keys for various mathematical operations.

Whakaahua 2.1: Mua view of the Sharp EL-W531 Scientific Calculator, showing the WriteView display and key layout. The display shows a fraction calculation, and keys are organized for easy access to functions.

Whakaahua 2.2: Te taha view of the Sharp EL-W531 Scientific Calculator illustrating its compact dimensions. The calculator measures approximately 17 cm (7.0 inches) in length.
3. Tatūnga
3.1 Puna Hiko
The Sharp EL-W531 calculator operates using both solar power and a single AAA battery. The solar panel provides power in well-lit environments, while the battery ensures operation in low-light conditions.
3.2 Tāutanga/Whakakapinga Pūhiko
- Me mohio kua weto te tatauranga.
- Kimihia te uhi o te wahanga pākahiko kei muri o te tatauranga.
- Mā te whakamahi i tētahi tīwiri iti, tangohia marietia te tīwiri e mau ana te taupoki.
- Peia te uhi ki waho.
- Remove the old AAA battery (if applicable) and insert a new AAA battery, ensuring correct polarity (+/-).
- Whakakapia te uhi o te wahanga pākahiko ka mau ki te huri.
3.3 Hiko Tuatahi
Pehia te ON/C button to turn on the calculator. The display will show the last calculation or be cleared, depending on the previous state.
4. Nga Tohutohu Whakahaere
4.1 Tatau Taketake
Hei mahi i nga mahi tauhanga taketake:
- Tāuruhia te tau tuatahi.
- Pēhia te pātene mahi e hiahiatia ana (+, -, ×, ÷).
- Tāuruhia te tau tuarua.
- Perehi = hei whakaatu i te hua.
4.2 TuhituhiView Whakaatu
Te TuhituhiView whakaatu ka taea e koe te whakauru me te view mathematical expressions as they appear in textbooks. Fractions, roots, and other complex expressions are displayed in a natural format. Use the navigation keys (up, down, left, right arrows) to move the cursor within an expression for editing.
4.3 Aratau Mahi
The calculator offers various modes for different types of calculations. Press the MODE key to cycle through available modes such as:
- MAHI: For general arithmetic and function calculations.
- STAT: For statistical calculations.
- EQN: For solving equations.
Refer to the on-screen indicators (e.g., DEG, RAD, GRAD) for the current angle unit. Press DRG► (i uru atu mā Te Whare Tuarua) to change the angle unit.
4.4 Scientific Functions
The EL-W531 includes 335 functions. Many functions are accessed directly, while others require pressing the Te Whare Tuarua key first. Common functions include:
- Pānga-toru: sin, cos, tan, and their inverse functions (sin-1, cos-1, na-1).
- Logarithmic/Exponential: log, ln, 10x, ex.
- Power/Root: x2, √, xy, y√x.
- Hautau: a b/c key for mixed numbers and improper fractions.
- Pūmahara: STO (store), RCL (recall), M+ (memory plus).
Consult the key labels and the calculator's display for specific function usage.
5. Tiaki
5.1 Te horoi
To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the casing ranei nga waahanga o roto.
5.2 Rokiroki
Store the calculator in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. If storing for an extended period, it is advisable to remove the battery to prevent leakage.
5.3 Tiaki Pūhiko
Replace the AAA battery promptly when the display becomes dim or erratic. Dispose of used batteries according to local regulations.
6. Te Raru
| Raruraru | Take pea | Rongoā |
|---|---|---|
| Kāore te tātaitai e kā ana. | Low or dead battery; insufficient light for solar panel. | Replace the AAA battery. Ensure adequate lighting for the solar panel. |
| He atarua, he putea ranei te whakaaturanga. | Low battery; insufficient light. | Replace the AAA battery. Move to a brighter area. |
| He he nga hua tatauranga. | Incorrect mode setting; input error; memory error. | Check the current mode (e.g., DEG/RAD). Clear all memory (Te Whare Tuarua M-CLR). Re-enter the calculation carefully. |
| "ERROR" message displayed. | Mathematical error (e.g., division by zero, invalid input). | Perehi ON/C to clear the error. Review your input and the mathematical operation. |
7. Whakatakotoranga
- Waitohu: koi
- Tauira: EL-W531
- Momo Whakaatu: Dot-matrix LCD, WriteView
- Whakaatu Whakatau: 96 x 32 pika
- Nga Mahi: 335
- Puna Hiko: Solar and 1 x AAA battery (included)
- Momo Mana: Patene
- Ahu (W x D x H): 8 x 16.8 x 1.4 cm (tata ki te 3.15 x 6.61 x 0.55 inihi)
- Taumaha: Tata ki te 104.33 g (3.68 oz)
- Tae: Metallic Green (model XH-GR)
8. Pūtāhui me te Tautoko
For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or visit the official Sharp webpae. Ko ngā taipitopito whakapā mō te ratonga kiritaki kei te paetukutuku a te kaihanga webpae.





