Update app.py

app.py

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+import streamlit as st
+
+# Configure the page
+st.set_page_config(page_title="Simple Calculator", page_icon="🧮")
+
+# Set the title of the app
+st.title("🧮 Simple Calculator")
+
+# Input fields for numbers
+number1 = st.number_input("Enter the first number", value=0.0)
+number2 = st.number_input("Enter the second number", value=0.0)
+
+# Dropdown to select operation
+operation = st.selectbox("Select an operation", ["Add", "Subtract", "Multiply", "Divide"])
+
+# Calculate button
+if st.button("Calculate"):
+    # Perform the selected operation
+    if operation == "Add":
+        result = number1 + number2
+    elif operation == "Subtract":
+        result = number1 - number2
+    elif operation == "Multiply":
+        result = number1 * number2
+    elif operation == "Divide":
+        if number2 == 0:
+            st.error("Error: Division by zero is not allowed!")
+            result = None
+        else:
+            result = number1 / number2
+    
+    # Display the result if no error
+    if result is not None:
+        st.success(f"Result: **{result:.2f}**")