Update app.py (#1)

- Update app.py (57f4d2f4e44cc2a864756ab0b1186cb8fb8b3ff1)


Co-authored-by: cs <[email protected]>

app.py

@@ -1,7 +1,23 @@
 import gradio as gr
 
-def greet(name):
-    return "Hello " + name + "!!"
+def calculator(num1, operation, num2):
+    if operation == "add":
+        return num1 + num2
+    elif operation == "subtract":
+        return num1 - num2
+    elif operation == "multiply":
+        return num1 * num2
+    elif operation == "divide":
+        return num1 / num2
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
-iface.launch()
+demo = gr.Interface(
+    calculator,
+    [
+        "number",
+        gr.Radio(["add", "subtract", "multiply", "divide"]),
+        "number"
+    ],
+    "number",
+    live=True,
+)
+demo.launch()