הקדמה
This manual provides detailed instructions for the proper use and maintenance of your Casio FX-991CEX CLASSWIZ scientific calculator. Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.
א פראנט view of the Casio FX-991CEX CLASSWIZ scientific calculator, displaying its screen, solar panel, and full keypad with various function buttons.
1. סעטאַפּ
1.1 מאַכט אויף
The Casio FX-991CEX CLASSWIZ calculator is primarily powered by a solar cell, with a button battery (LR44) providing backup power for memory retention and operation in low light conditions. Ensure sufficient light is available for the solar cell to operate. Press the ON button to turn on the calculator.
1.2 ערשט סעטטינגס
Upon first use or after a reset, you may need to configure initial settings. Press [שיפט] דעמאָלט [MENU SETUP] to access the setup menu. Use the arrow keys to navigate and select options such as input/output format, angle unit, and display format.
- אַרייַנשרייַב / רעזולטאַט: Select MathI/MathO for natural display or LineI/LineO for linear display.
- Angle Unit: Choose between Degree, Radian, or Gradian.
- ווייַז פֿאָרמאַט: Configure number of decimal places or significant figures.
2. אַפּערייטינג ינסטרוקטיאָנס
2.1 גרונטלעכע קאַלקולאַציעס
אַרייַן נומערן און אָפּעראַציעס ניצנדיק די קלאַוויאַטור. דריק. [=] to obtain the result. For example, to calculate 5 + 3, press [5] [+] [3] [=].
2.2 פונקציע מאָדעס
The calculator offers various modes for different types of calculations. Press [MENU] to access the mode selection screen. Common modes include:
- Calculate (COMP): For general arithmetic and function calculations.
- Complex: פֿאַר קאָמפּלעקסע נומער חשבונות.
- Base-N: For binary, octal, decimal, and hexadecimal calculations.
- מאַטריץ: For matrix calculations.
- וועקטאָר: For vector calculations.
- Statistics (STAT): For statistical calculations.
- טיש: To generate a number table for a function.
- Equation/Func: For solving equations and inequalities.
2.3 Using Secondary Functions
Many keys have secondary functions printed above them. To access these, press the [שיפט] key (yellow) followed by the desired function key. For alpha characters and variables, press the [ALFA] key (red) followed by the corresponding key.
2.4 זכּרון פונקציעס
The calculator includes independent memory (M) and variable memories (A, B, C, D, E, F, X, Y). To store a value, enter the value, press [STO], then press the desired memory key. To recall a value, press [RCL], then the desired memory key.
3. וישאַלט
3.1 רייניקונג
Wipe the calculator gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the surface or internal components.
3.2 סטאָרידזש
Store the calculator in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Keep it away from strong magnetic fields.
3.3 זונ פּאַנעל זאָרג
Ensure the solar panel is not obstructed during use to maintain optimal power supply. Keep the solar panel clean and free from dust or debris.
4. טראָובלעשאָאָטינג
4.1 "Math ERROR" Displayed
This error indicates an invalid mathematical operation (e.g., division by zero, square root of a negative number). Review your input and correct any errors.
4.2 דיספּליי איז ליידיק אָדער טונקל
- Ensure the calculator is in a well-lit area for the solar panel.
- If the issue persists, the internal button battery may be low. Contact Casio support for battery replacement information.
4.3 Calculator Not Responding
If the calculator becomes unresponsive, try performing a reset. Locate the באַשטעטיק button (usually a small hole on the back or side) and gently press it with a thin, pointed object (like a straightened paper clip). Note that this will clear all memory and settings.
5. ספּעסאַפאַקיישאַנז
| מאָדעל נאָמען | FX-991CEX |
| סאָרט | קאַסיאָ |
| דימענסיעס (L X W X H) | 25.4 x 5.1 x 6.9 ס״מ (אומגעפער) |
| וואָג | 240 ג (בעערעך) |
| מאַכט מקור | Solar power with button battery backup |
| ווייַז | High-resolution LCD, 12-digit display |
| שליסל פֿעיִקייטן | Natural Textbook Display, 552 functions, QR Code generation, Spreadsheet, Equation Solver, Matrix/Vector calculations. |
6. וואָראַנטי און שטיצן
Your Casio FX-991CEX CLASSWIZ calculator comes with a standard manufacturer's warranty. For specific warranty terms, service, or technical support, please refer to the official Casio website or contact your local Casio distributor.
אפיציעלע קאַסיאָ שטיצע: www.casio.com/support
