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.

1
  • $\begingroup$ Hi, Carl Woll, I posted a summary answer, and there are some issue I don't understand. Would you to have a look? $\endgroup$ Commented Mar 12, 2019 at 5:00