Update app.py

app.py

@@ -1,5 +1,5 @@
 import gradio as gr
-
+import math
 
 def calculator(num1, operation, num2):
     if operation == "add":
@@ -14,21 +14,15 @@ def calculator(num1, operation, num2):
         return num1 * num1
     elif operation == "cube":
         return num1 * num1 * num1
-    elif operation == "sin":
-        return math.sin(num1)
-    elif operation == "cos":
-        return math.cos(num1)
-    elif operation == "tan":
-        return math.tan(num1)
-    else:
-        return None
+    elif operation == "exponential":
+        return math.pow(num1, num2)
 
 demo = gr.Interface(
     fn=calculator,
     inputs=[
             gr.Number(value=4), 
-            gr.Radio(["add", "subtract", "multiply", "divide", "square", "cube", "sin", "cos", "tan"]), 
-            "number"
+            gr.Radio(["add", "subtract", "multiply", "divide", "square", "cube", "exponential"]), 
+            gr.Number(value=2)
             ],
     outputs="number",
     examples=[
@@ -36,6 +30,7 @@ demo = gr.Interface(
         [4, "divide", 2],
         [-4, "multiply", 2.5],
         [0, "subtract", 1.2],
+        [2, "exponential", 3]
     ],
     title="Scientific Calculator",
     description="Here's a sample scientific calculator. Enjoy! Code by: Freddy Aboulton   Improved by: Usually3"