adding info on the required Numpy version to the recenlty added solution

2016-09-28 09:32:10 +02:00
parent b74eeca0cf
commit 497f204914
2 changed files with 2 additions and 2 deletions
--- a/exercises.md
+++ b/exercises.md
@@ -693,7 +693,7 @@ print(np.unique(I))

 ```python
 A = np.random.randint(0,10,(3,4,3,4))
-# solution by passing a tuple of axes
+# solution by passing a tuple of axes (introduced in numpy 1.7.0)
 sum = A.sum(axis=(-2,-1))
 print(sum)
 # solution by flattening the last two dimensions into one