Futuristic Engineering Calculator 🧠

A modern, multi-functional calculator built with PyQt5, combining scientific calculations, voice interaction, graph plotting, unit conversions, keyboard shortcuts, and a dynamic UI inspired by real calculators and engineering tools.

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🚀 Features

🧮 Scientific Calculator

• Handles basic and complex expressions
• Supports sin, cos, tan, log, ln, √, π, e, factorial, power, etc.
• Bracket auto-completion
• Error handling and expression validation
• Supports keyboard input and shortcut keys

📢 Voice Command Mode

• Real-time speech recognition for hands-free calculation
• Commands like:
  • "Graph mode"
  • "Unit converter"
  • "Dark mode"
  • "sin x plus 2 into x" → 🧠 gets parsed and evaluated

📈 Graph Plotting (2D & 3D)

• Enter expressions like x**2, sin(x), or x**2 + y**2
• Toggle between 2D/3D mode automatically
• Features:
  • Color picker for each expression
  • Zoom/pan toolbar
  • Export graph as image
  • Animate variable (a) using a slider

🔁 Unit Converter

• Supports length, temperature, volume, mass, and more
• Converts between metric and imperial units
• Clean interface with instant updates

🌙 Theme Support

• Toggle between Dark and Light mode
• Full theming for calculator, graph, and converter views

⌨️ Keyboard Shortcuts

Shortcut	Action
Ctrl + G	Open Graph Plotter
Ctrl + U	Open Unit Converter
Ctrl + D	Toggle Dark/Light Theme
Enter	Evaluate Expression
Esc	Clear Expression

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📦 Tech Stack

• Python 3.10+
• PyQt5 - UI framework
• SymPy - Expression parsing
• Matplotlib - Graph plotting
• NumPy - Array and math functions
• SpeechRecognition - Voice input

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📸 Screenshots

📸 Screenshots

🧮 Scientific Calculator

📈 Graph Plotter

🔁 Unit Converter

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🛠️ Setup Instructions

# 1. Clone the repo
https://github.com/m1n1v1rus/futuristic-calculator.git

# 2. Move into project
cd futuristic-calculator

# 3. Create virtual environment (optional)
python -m venv .venv
source .venv/Scripts/activate  # Windows

# 4. Install dependencies
pip install -r requirements.txt

# 5. Run the calculator
python main.py

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👤 Author

Ayush Mani
🔗 GitHub: @m1n1v1rus

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🌟 Star the repo if you like futuristic tools!