app.py

import streamlit as st

st.title("Simple Calculator")

# 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", ["+", "-", "*", "/"])

# Perform calculation
if st.button("Calculate"):
    if operation == "+":
        result = num1 + num2
        st.success(f"The result is: {result}")
    elif operation == "-":
        result = num1 - num2
        st.success(f"The result is: {result}")
    elif operation == "*":
        result = num1 * num2
        st.success(f"The result is: {result}")
    elif operation == "/":
        if num2 != 0:
            result = num1 / num2
            st.success(f"The result is: {result}")
        else:
            st.error("Cannot divide by zero!")