1 files changed, 6 insertions, 2 deletions
diff --git a/range.c b/range.c
index a6bf0fca51..cafe57ab77 100644
--- a/range.c
+++ b/range.c
@@ -2438,8 +2438,12 @@ range_overlap(VALUE range, VALUE other)
  * A beginless range may be used to slice an array:
  *
  *  a = [1, 2, 3, 4]
- *  r = (..2) # => nil...2
- *  a[r]      # => [1, 2]
+ *  # Include the third array element in the slice
+ *  r = (..2)  # => nil..2
+ *  a[r]       # => [1, 2, 3]
+ *  # Exclude the third array element from the slice
+ *  r = (...2) # => nil...2
+ *  a[r]       # => [1, 2]
  *
  * \Method +each+ for a beginless range raises an exception.
  *