Freehand Equation Solver

A PyTorch CNN recognizing handwritten digits (0-9) and operators (+, -) from Kaggle’s Handwritten Digits and Operators dataset, achieving 94% accuracy. Uses OpenCV to segment freehand equations (e.g., "5+8=") and solves them (e.g., "5+8=13"). Inspired by iPad Calculator Notes.

Features

• CNN-based classification of digits and operators.
• OpenCV segmentation for freehand input.
• Solves basic arithmetic expressions.

Results

• Input: "5+8=" → Output: "5+8=13"
• Note: Ongoing tuning for equations like "9-5=" to improve operator detection.

Setup

• Dataset: Kaggle Handwritten Digits and Operators
• Run in Google Colab with the provided notebook.

Demo