feat(app): change result output type from Number to Text in calculator UI

app.py

@@ -63,10 +63,10 @@ def calculate(n1, op, n2):
         "Error"
     """
 
-    if op == "+": return n1 + n2
-    if op == "-": return n1 - n2
-    if op == "*": return n1 * n2
-    if op == "/" and n2 != 0: return n1 / n2
+    if op == "+": return str(n1 + n2)
+    if op == "-": return str(n1 - n2)
+    if op == "*": return str(n1 * n2)
+    if op == "/" and n2 != 0: return str(n1 / n2)
     return "Error"
     
 # demo = gr.Interface(fn=greet, inputs="text", outputs="text")
@@ -88,7 +88,7 @@ with gr.Blocks() as demo:
         num2 = gr.Number(label="Second Number")
     
     calc_btn = gr.Button("Calculate")
-    calc_output = gr.Number(label="Result")
+    calc_output = gr.Text(label="Result")
     calc_btn.click(
         fn=calculate,
         inputs=[num1, operation, num2],