Casio FX-85DE CW ClassWiz Technical Scientific Calculator

pengenalan

The Casio FX-85DE CW ClassWiz is a technical scientific calculator designed for a wide range of mathematical and scientific calculations. It features a natural display, an intuitive icon menu, and over 310 functions, making complex calculations accessible and efficient. This manual provides essential information for setting up, operating, and maintaining your calculator.

Rajah 1: Depan view of the Casio FX-85DE CW ClassWiz calculator, showing its display and key layout. The display shows a complex fraction calculation.

Persediaan

Battery Installation and Power Source

The Casio FX-85DE CW ClassWiz calculator operates using both solar power and a single LR 044 battery. The battery is included with the product.

• Ensure the calculator is exposed to sufficient light for solar operation.
• The LR 044 battery provides power in low-light conditions or when solar power is insufficient.
• To replace the battery, refer to the "Maintenance" section for detailed instructions.

Kuasa Awal Hidup

Untuk menghidupkan kalkulator, tekan butang ON button located on the top left of the keypad. The calculator will display the main menu or the last active calculation mode.

Arahan Operasi

Paparan dan Navigasi

• Paparan Semulajadi: Mathematical expressions such as roots, fractions, and logarithms are displayed as they appear in textbooks.
• Icon Menu: Navigate through various modes and functions using the intuitive icon menu. Use the directional keys to select an icon and press OK untuk mengesahkan.
• Characters/Lines: The display supports 17 characters per line with 1+10/1 lines for input/output.
• Display Shades: The display features 4 shades of grey for improved readability.

Operasi Asas

• Aritmetik: Perform addition, subtraction, multiplication, and division using the dedicated keys.
• Pengiraan Pecahan: Input and calculate fractions directly using the fraction key.
• Peratustage Pengiraan: Gunakan peratusantage function for calculations involving percentages.
• Exponent and Logarithm: Access functions for exponents (x², xʸ), square roots (√), and logarithms (log, ln, 10ˣ).

Fungsi Lanjutan

• Fungsi trigonometri: Calculate sine, cosine, tangent, and their inverse functions (sin⁻¹, cos⁻¹, tan⁻¹).
• Fungsi Hiperbolik: Access sinh, cosh, tanh, and their inverse functions.
• Angle Dimensions: Convert between DEG (degrees), RAD (radians), and GRAD (gradians).
• Coordinate Conversion: Convert between polar and rectangular coordinates.
• Prime Factor Decomposition: Determine the prime factors of a number.
• Technical Notation: Use ENG/ENG notation for engineering calculations.
• Random Number Generator: Generate random numbers or integer random numbers.
• Check Function "Verify": Verify the correctness of equations.
• Value Table: Generate tables of values for functions f(x) and g(x).
• Periodic Decimal Fraction: Display periodic decimal fractions.

Pengiraan Statistik

The calculator supports various statistical calculations:

• Sum formation of ∑x, ∑x²
• Sum formation of ∑x, ∑y, ∑x², ∑y², ∑x*y
• Standard deviations for grouped and ungrouped values
• Analisis regresi
• Permutation (nPr) and Combinatorics (nCr)

Ciri Khas

• Maths Box: Simulate random experiments such as coin tosses and dice rolls.
• Fungsi Kod QR: Generate QR codes to visualize results and functions on a smartphone or tablet.
• German Menu Language: The calculator features German menu navigation.

Penyelenggaraan

Pembersihan

To clean the calculator, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or alcohol, as these can damage the casing dan paparan.

Penyimpanan

Store the calculator in its hard case when not in use to protect it from dust, scratches, and impacts. Avoid exposing the calculator to extreme temperatures or direct sunlight for prolonged periods.

Penggantian Bateri

The calculator uses one LR 044 battery. When the display becomes dim or the calculator functions erratically, it may be time to replace the battery.

1. Matikan kalkulator.
2. Cari petak bateri di bahagian belakang kalkulator.
3. Buka penutup petak dengan berhati-hati.
4. Remove the old LR 044 battery.
5. Insert a new LR 044 battery, ensuring correct polarity (+/-).
6. Tutup penutup petak bateri dengan selamat.
7. Buang bateri lama mengikut peraturan tempatan.

Menyelesaikan masalah

Spesifikasi

Figure 2: Dimensions of the Casio FX-85DE CW ClassWiz calculator, showing a height of 6.38 inches and a width of 3.03 inches.

• Nombor Model: FX-85DECW
• Dimensi Produk: 6.81 x 3.03 x 0.63 inci (17.3 x 7.7 x 1.6 cm)
• Berat Barang: 3.35 auns (95 g)
• Sumber Kuasa: Solar + 1x LR 044 Battery (included)
• paparan: 63 x 192 full dot, Natural Display, 4 shades of grey
• Fungsi: 310+ fungsi
• Ingatan: 9 variable memory
• Matikan Automatik: ya
• Aksesori yang disertakan: Kes keras
• Pengeluar: Casio Europe GmbH

Waranti dan Sokongan

Untuk maklumat jaminan dan sokongan pelanggan, sila rujuk laman web rasmi Casio website or contact your local Casio distributor. Keep your purchase receipt as proof of purchase for any warranty claims.

For further assistance or detailed operational guides, please visit the Casio Calculators official webtapak.