diff --git a/Beginner/exercise24.py b/Beginner/exercise24.py
index f16560a..37d31a5 100644
--- a/Beginner/exercise24.py
+++ b/Beginner/exercise24.py
@@ -1,9 +1,13 @@
+## To get documantation of any keyword!
 print(abs.__doc__)
 print(int.__doc__)
 print(input.__doc__)
 
 def sq(x):
     '''This returns the square of number'''
+    x= float(x)
+    ## Press shift+tab in Safari & you'll get the above line in the documentation.
     return x*x
 
 print(sq.__doc__)
+##another method for this!