Update app.py

app.py

@@ -0,0 +1,28 @@
+# app.py
+
+import streamlit as st
+
+st.title("🧮 Simple Calculator")
+
+# User inputs
+num1 = st.number_input("Enter first number", format="%.2f")
+num2 = st.number_input("Enter second number", format="%.2f")
+operation = st.selectbox("Choose operation", ["Add", "Subtract", "Multiply", "Divide"])
+
+# Perform calculation
+result = None
+if operation == "Add":
+    result = num1 + num2
+elif operation == "Subtract":
+    result = num1 - num2
+elif operation == "Multiply":
+    result = num1 * num2
+elif operation == "Divide":
+    if num2 != 0:
+        result = num1 / num2
+    else:
+        st.error("Cannot divide by zero!")
+
+# Show result
+if result is not None:
+    st.success(f"Result: {result}")