app.py

import streamlit as st  # Make sure this is at the very top

st.set_page_config(page_title="🧮 Simple Calculator App", page_icon="🧮")
st.title("🧮 Simple Calculator App")

# Input fields
num1 = st.number_input("Enter the first number", format="%.2f")
num2 = st.number_input("Enter the second number", format="%.2f")

# Operation selection
operation = st.selectbox("Choose an operation", (
    "Addition", 
    "Subtraction", 
    "Multiplication", 
    "Division", 
    "Modulus (Remainder)", 
    "Exponentiation (Power)", 
    "Floor Division", 
    "Average", 
    "Maximum", 
    "Minimum"
))

# Perform calculation
if st.button("Calculate"):
    if operation == "Addition":
        result = num1 + num2
        st.success(f"The result of addition is: {result}")
    elif operation == "Subtraction":
        result = num1 - num2
        st.success(f"The result of subtraction is: {result}")
    elif operation == "Multiplication":
        result = num1 * num2
        st.success(f"The result of multiplication is: {result}")
    elif operation == "Division":
        if num2 != 0:
            result = num1 / num2
            st.success(f"The result of division is: {result}")
        else:
            st.error("Division by zero is not allowed!")
    elif operation == "Modulus (Remainder)":
        if num2 != 0:
            result = num1 % num2
            st.success(f"The result of modulus is: {result}")
        else:
            st.error("Modulus by zero is not allowed!")
    elif operation == "Exponentiation (Power)":
        result = num1 ** num2
        st.success(f"The result of {num1} ^ {num2} is: {result}")
    elif operation == "Floor Division":
        if num2 != 0:
            result = num1 // num2
            st.success(f"The result of floor division is: {result}")
        else:
            st.error("Floor division by zero is not allowed!")
    elif operation == "Average":
        result = (num1 + num2) / 2
        st.success(f"The average of the two numbers is: {result}")
    elif operation == "Maximum":
        result = max(num1, num2)
        st.success(f"The maximum of the two numbers is: {result}")
    elif operation == "Minimum":
        result = min(num1, num2)
        st.success(f"The minimum of the two numbers is: {result}")