import streamlit as st # Define a function to calculate the square of a number def calculate_square(number): return number * number # Add a text input widget for users to input a number number_input = st.number_input("Enter a number:") # When the user inputs a number, calculate and display its square if number_input is not None: square = calculate_square(number_input) st.write(f"The square of {number_input} is {square}")