Create app.py

app.py

@@ -0,0 +1,23 @@
+# app.py
+
+import streamlit as st
+
+st.set_page_config(page_title="Simple Calculator", page_icon="🧮")
+
+st.title("🧮 Simple Calculator")
+st.write("This calculator can do addition (+), subtraction (-), multiplication (*), and division (/).")
+
+# Get user input
+expression = st.text_input("Enter a math expression (e.g., 5 + 3):")
+
+def calculate(expr):
+    try:
+        # Safely evaluate the expression
+        result = eval(expr)
+        return result
+    except:
+        return "Invalid input"
+
+if st.button("Calculate"):
+    result = calculate(expression)
+    st.write(f"Result: **{result}**")