Skip to main content

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

Required fields*

1
  • By “the middle” do you mean the exact center of the line (with an even length)? Or just some position between the beginning and the end? In this case, how do you determine it? Commented Jun 19, 2018 at 15:41