Update app.py

app.py

@@ -1,4 +1,58 @@
 import streamlit as st
 
-x = st.slider('Select a value')
-st.write(x, 'squared is', x * x)
+st.title("Simple Calculator")
+st.write("This calculator performs basic arithmetic operations.")
+
+# Input fields for the numbers
+num1 = st.number_input("Enter 1st number:", value=0.0)
+num2 = st.number_input("Enter 2nd number:", value=0.0)
+
+# Operation selection
+operation = st.selectbox(
+    "Select operation:",("Addition", "Substraction", "Multiplication", "Division", "Exponentiation")
+)
+
+# Calculate button
+if st.button("Calculate"):
+    if operation == "Addition":
+        result = num1 + num2
+        st.success(f"{num1} - {num2} = {result}")
+
+    elif operation == "Substraction":
+        result = num1 - num2
+        st.success(f"{num1} - {num2} = {result}")
+    
+    elif operation == "Multiplication":
+        result = num1 * num2
+        st.success(f"{num1} * {num2} = {result}")
+
+    elif operation == "Division":
+        if num2 == 0:
+            st.error("Error: Division by zero!")
+        else:
+            result = num1 / num2
+            st.success(f"{num1} / {num2} = {result}")
+
+    elif operation == "Exponentiation":
+        result = num1 ** num2
+        st.success(f"{num1} ^ {num2} = {result}")
+
+# Add a divider and display instructions
+st.divider()
+
+# Additional calculator history section
+st.subheader("History")
+st.write("Your calculation history will appear here.")
+
+# How to use section
+st.subheader("How to Use")
+st.write("""
+1. Enter the 1st Number
+2. Enter the 2nd Number
+3. Select the operation from the dropdown
+4. Click the 'Calculate' button
+""")
+
+# Footer
+st.divider()
+st.caption("Simple Calculator App built with Streamlit")