آلة حاسبة 991 Ultra Calculator

🔥 Welcome to the 991 Ultra Calculator – the ultimate scientific, graphing, and engineering calculator for high school, college, and university students, including those in engineering and science!

This app is designed to outperform the latest real calculators like the Casio fx-991EX ClassWiz, fx-570EX, fx-300ES Plus, and the popular Texas Instruments TI-84 Plus graphing calculator, while incorporating cutting-edge technologies not found in any other calculator in the world!

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🌟 Calculators Combined into One App:

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1. Advanced Scientific Calculator 991 EX ClassWiz & 570 EX
2. Basic Calculator 300 ES Plus & 115 ES Plus
3. Comprehensive Graphing Calculator TI-84 Plus (2D & 3D Graphing)
4. Symbolic Algebra Engine CAS (Symbolic Computer Algebra)
5. Real Spreadsheet Mode (ClassWiz Spreadsheet) A1:E45)

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⚡ Unique and Exclusive Features:

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📐 1. Natural Textbook Display:
Displays fractions, roots, matrices, integrals, and limits exactly as they appear in your textbook or notebook.

📈 2. 3D Surface Graph: Plot the z = f(x, y) surface function with 360° touch rotation, thermal color gradient, and smooth zooming of functions and waves.

📊 3. ClassWiz Spreadsheet (A1:E45): Exclusive Casio ClassWiz feature! A 5-column, 45-row grid supporting range functions (SUM, MEAN, MAX, MIN) and cross-coordinate operations.

⚡ 4. EE Suite:
• Resistor Color Code Simulator for 4 and 5 bands with realistic visual representation of resistance and permittivity.

• AC RLC Circuit Analysis and Calculation of Impedance |Z|, Phase Angle, Resonant Frequency, and Power Factor.

• Delta-Star Converter.

🏗️ 5. Civil, Mechanical, and Fluid Mechanics Engineering Kit:

• Calculation of beam deflection and bending moments (M_max, V_max, δ_max).

• Calculation of Reynolds number and determination of fluid flow type (laminated or turbulent).

• Efficiency of Carnot cycles and thermodynamics.

🔌 6. Logic Gates and K-Maps: Simplifying Karnaugh maps for 2, 3, and 4 variables, generating SOP formulas, and simulating logic gates (AND, OR, NOT, XOR, etc.).

✍️ 7. Handwriting Math Canvas: Write the problem by hand or with a stylus, get the solution instantly, and send it to the calculator screen with a single touch.

🔒 8. Student Exam Mode: Locks smart features and libraries during exams to comply with school and university exam requirements.

📄 9. Export Engineering Reports to LaTeX and PDF: Generates academic reports ready for assignments and research in the standard LaTeX mathematical format.

📱 10. Casio ClassWiz QR Sync: Simulates a real QR code button to instantly generate a barcode on the LCD screen for sharing problems and graphs.

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🎓 For all majors and academic levels:

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• Mathematics: Calculus, Differential Equations, Limits, 4x4 Matrices, Vectors, Statistics and Regression, Linear Systems.

• Physics and Chemistry: The Periodic Table with calculation of molar mass of compounds, physical constants, and a 150+ unit converter.

• Computer Science: Base-N (Hex, Dec, Oct, Bin) and Bitwise Logical Operations, Floating-Point Analytics (IEEE 754).

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👨‍💻 Developer & Company Information:
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Developed and Supervised by: Eng. Mahmoud ElNemer
Company: ElNemer AI Systems

For direct contact, inquiries, and technical support:

💬 Direct WhatsApp for the Developer: +201507559911 (https://wa.me/201507559911)

📞 Phone: +201507559911 / 01507559911

✉️ Official Email: info@elnemer-ai.com

🌐 Company Website: https://elnemer-ai.com/

Download the app now and enjoy a superior scientific experience that puts the world's most powerful computers at your fingertips for free!