Update app.py

app.py

@@ -0,0 +1,31 @@
+import streamlit as st
+
+# App Title
+st.title("Simple Calculator")
+
+# User Input
+st.header("Enter two numbers")
+num1 = st.number_input("Enter first number:", value=0.0)
+num2 = st.number_input("Enter second number:", value=0.0)
+
+# Operation Selection
+operation = st.selectbox(
+    "Choose an operation:",
+    ("Addition", "Subtraction", "Multiplication", "Division")
+)
+
+# Calculate Button
+if st.button("Calculate"):
+    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 = "Error! Division by zero."
+
+    st.success(f"The result of {operation} is: {result}")