🧮 Advanced Scientific Calculator

A beautiful and fully functional scientific calculator built with HTML, CSS, and JavaScript.
It includes a scientific expression evaluator, a calculation history panel, and a stopwatch timer — all inside a responsive and visually modern UI.

✨ Features

• ✅ Scientific functions: sin, cos, tan, log, ln, √, ^, !, π, e, mod, abs, exp, and more
• ✅ Calculation history (up to 20 operations)
• ✅ Stopwatch timer with start/stop and reset
• ✅ Red/black modern theme with yellow hover effects
• ✅ Responsive layout for mobile and desktop
• ✅ Built without any external libraries — pure HTML/CSS/JavaScript

📸 Screenshots

Live Demo

Click here ☺️

📁 Project Structure

advanced-calculator/
├── index.html           # Main HTML structure
├── style.css            # Calculator & layout styling
├── app.js               # Calculator logic & interactions
├── screenshot.png       # UI screenshot for README preview
├── README.md            # Project documentation
└── assets/              # (Optional) icons, images, fonts etc.

📄 License

This project is licensed…