Added Calculator

calculator.py

@@ -0,0 +1,20 @@
+import streamlit as st
+st.title(" Simple Calculator")
+
+# Input numbers
+num1 = st.number_input("Enter first number:")
+num2 = st.number_input("Enter second number:")
+# Operation selection
+operation = st.radio("Select operation:", ("Add", "Subtract", "Multiply",
+"Divide"))
+# Calculate result
+if st.button("Calculate"):
+    if operation == "Add":
+        result = num1 + num2
+    elif operation == "Subtract":
+        result = num1 - num2
+    elif operation == "Multiply":
+        result = num1 * num2
+    elif operation == "Divide":
+        result = num1 / num2 if num2 != 0 else "Error: Division by zero!"
+    st.success(f"Result: {result}")