An advanced Python-based calculator that supports both keyboard input and voice commands, capable of performing arithmetic operations, number analysis, and sequence generation.

• Keyboard-based input
• Voice input using speech recognition

• Addition, Subtraction, Multiplication
• Division, Modulus, Power

• Factorial, Square, Cube
• Square Root

• Prime check
• Even / Odd detection

• Fibonacci series generation

• Speaks results using text-to-speech

• Python
• speech_recognition
• pyttsx3
• math

smart-calculator/
│── main.py
│── README.md

pip install SpeechRecognition pyttsx3

⚠️ For microphone support, you may also need:

pip install pyaudio

Run the program:

python main.py

add 5 and 10
square 7
factorial 5

• "Multiply 6 and 8"
• "Find square root of 25"
• "Check prime 13"

• Prevents division by zero
• Validates input type
• Handles invalid commands gracefully

• GUI version (Tkinter / Web App)
• Advanced NLP understanding
• More mathematical operations
• Multi-language voice support

python, calculator, voice-recognition, text-to-speech, smart-calculator, beginner-project

This project is open-source and available under the MIT License.