シャープ EL-W531XG-YR 関数電卓 ユーザーマニュアル

1. はじめに

This manual provides detailed instructions for the operation and maintenance of your Sharp EL-W531XG-YR Scientific Calculator. Designed for students and professionals, this calculator features a 4-line WriteView display and a wide range of scientific and statistical functions. Please read this manual thoroughly to ensure proper use and to maximize the calculator's capabilities.

図1.1: 前面 view of the Sharp EL-W531XG-YR Scientific Calculator packaging, highlighting key features.

2. 主な特徴

• 画面： 4-line, 96 x 32 dot matrix WriteView display for natural expression input and output.
• 電源: Twin Power system (solar and LR44 battery) for reliable operation.
• 機能: 335 built-in functions covering basic arithmetic, scientific, and statistical calculations.
• Direct Algebraic Input Logic (D.A.L.): Allows input of equations as they are written.
• メモリ： 9 independent variable memories (STO, RCL, M+, M-).
• ショートカットキー Four customizable shortcut keys (D1-D4) for frequently used functions.
• Number Systems: Supports calculations in decimal, hexadecimal, octal, binary, and pentary bases.
• Statistical Analysis: 1-variable and 2-variable statistics, including standard deviation, mean, and regression analysis.
• トレーニング機能： Includes a function for practicing multiplication tables (1x1 to 12x12) and basic arithmetic.

3. セットアップ

3.1. バッテリーの取り付け

The calculator operates on a Twin Power system, utilizing both solar power and a single LR44 button cell battery. The battery is typically pre-installed. If the display becomes dim or unresponsive in low light, the battery may need replacement.

1. 電卓がオフになっていることを確認してください。
2. 電卓の背面にある電池ボックスを見つけます。
3. Use a small screwdriver to open the compartment cover.
4. 古い LR44 電池を取り外し、正しい極性 (+/-) を確認して新しい電池を挿入します。
5. コンパートメントカバーを元に戻し、ネジで固定します。

3.2. 初回電源投入

を押す オン/C button to turn on the calculator. The display will show the initial screen. If the display is blank, ensure sufficient light for solar power or check the battery.

図3.2.1: 前面 view of the Sharp EL-W531XG-YR Scientific Calculator, displaying a complex mathematical expression on its WriteView 画面。

4. 操作手順

4.1. 基本操作

Perform standard arithmetic calculations using the number keys and operators (+, -, x, ÷）。 プレス = to get the result. The calculator uses Direct Algebraic Input Logic (D.A.L.), allowing you to input equations in a natural order.

4.2. 書き込みView 画面

書き込みView display allows you to enter and view mathematical expressions and symbols as they appear in textbooks. This 96 x 32 dot matrix display supports up to 4 lines of content. Use the cursor keys to navigate and edit expressions.

4.3. 科学関数

Access various scientific functions using the dedicated keys and the 2階 key for secondary functions. These include:

• 三角関数: sin, cos, tan, and their inverse functions (sin^-1、コス^-1、 そう^-1).
• 双曲線関数: hyp, and their inverse functions.
• Logarithmic and Exponential Functions: log, ln, 10^x、e^x.
• Power and Root Functions: x², √, x^y, ^y√x.
• Factorial, Permutations, Combinations: n!, nPr, nCr.
• 定数: Pi (π), EXP.

4.4. Statistical Functions

The calculator supports statistical calculations for 1-variable and 2-variable data. To enter statistical mode, press モード and select the appropriate statistical option. Functions include:

• Mean value (x̄, ȳ)
• Standard deviation (σx, σy, sx, sy)
• Sum of values (Σx, Σy, Σx², Σy², Σxy)
• Regression analysis (linear, quadratic, exponential, etc.)

4.5. メモリ機能

The calculator has 9 independent memories (A-F, X, Y, M) to store and recall values. Use the STO key to store a value and the RCL key to recall a stored value. M+ そして M- are used to add or subtract values from the independent memory M.

4.6. Angle Units

The calculator supports three angle units: Degrees (DEG), Radians (RAD), and Gradians (GRAD). Press the DRGA key to cycle through these units or use the 設定 menu to select the desired unit.

4.7. Number Systems

Perform calculations and conversions in different number bases: Decimal (DEC), Hexadecimal (HEX), Octal (OCT), Binary (BIN), and Pentary (PEN). Use the dedicated keys or the モード menu to switch between number systems.

4.8. Shortcut Keys (D1-D4)

The four shortcut keys (D1, D2, D3, D4) can be programmed to quickly access frequently used functions. Refer to the calculator's on-screen setup menu for instructions on how to assign functions to these keys.

図4.8.1: 角度付き view of the Sharp EL-W531XG-YR Scientific Calculator with its protective hard case removed, showcasing the orange and black design.

5. メンテナンス

5.1. 清掃

電卓を清掃するには、柔らかく乾いた布で優しく拭いてください。研磨剤入りの洗剤、溶剤、濡れた布は電卓を傷める可能性があるため、使用しないでください。asing または内部コンポーネント。

5.2. バッテリーの交換

Refer to Section 3.1 for instructions on replacing the LR44 battery. Always use a fresh, high-quality LR44 battery for optimal performance.

5.3. ストレージ

When not in use, store the calculator in its protective hard case to prevent scratches and damage. Avoid exposing the calculator to extreme temperatures, humidity, or direct sunlight for extended periods.

Figure 5.3.1: The Sharp EL-W531XG-YR Scientific Calculator enclosed in its transparent protective hard case.

6。 トラブルシューティング

• 電卓が起動しない: Ensure sufficient light for solar panel. Check and replace the LR44 battery if necessary.
• ディスプレイが暗い、または空白です: Move to a brighter area for solar power. Replace the LR44 battery.
• 計算結果が正しくありません: Check the input values and the selected mode (e.g., angle unit, number system). Reset the calculator if persistent issues occur (refer to the full manual for reset procedures).
• キーが反応しない: Ensure no debris is lodged under the keys. Clean the calculator as per Section 5.1.

7. 仕様

Figure 7.1: The Sharp EL-W531XG-YR Scientific Calculator held in a hand, illustrating its compact size and ergonomic design.

8. 保証とサポート

For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Sharp website. You can also find additional resources and a full digital manual at: Sharp-world.com/calculator/.

Figure 8.1: Back of the product packaging, detailing specifications and providing the official Sharp calculator support webサイト。