app.py

import streamlit as st

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

st.title("🧮 Simple Calculator")
st.write("Enter two numbers and select an operation:")

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

# Operation selection
operation = st.selectbox("Select operation", ["Addition", "Subtraction", "Multiplication", "Division"])

# Result calculation
result = None
if operation == "Addition":
    result = num1 + num2
elif operation == "Subtraction":
    result = num1 - num2
elif operation == "Multiplication":
    result = num1 * num2
elif operation == "Division":
    if num2 != 0:
        result = num1 / num2
    else:
        result = "❌ Cannot divide by zero"

# Display result
if st.button("Calculate"):
    st.success(f"Result: {result}")