📦 Packages Used
tkinter → For creating the graphical user interface (GUI)
ttk (from tkinter) → For displaying BMI history in a table format
matplotlib → For plotting BMI trend graphs
messagebox → For showing pop-up alerts and errors
🎯 Objective
The purpose of this project is to create a user-friendly BMI Calculator that not only calculates BMI but also:
Stores a history of calculations
Displays results in a table format
Provides a graph to track BMI progress over time
🚀 Features
Input weight (kg) and height (m) to calculate BMI
Categorizes result into:
Underweight
Normal weight
Overweight
Obese
Stores all results in a history table (weight, height, BMI, category)
Graphical visualization of BMI trends using Matplotlib
Error handling for invalid inputs (e.g., negative values, non-numeric input)
🖥️ How It Works
Enter weight and height in the respective fields.
Click Calculate BMI → Result is displayed with BMI value and category.
Each calculation is saved in history.
Click View History → A table of past BMI calculations appears.
Click Show Graph → A trend chart of BMI values is displayed.