If the user was to store data....  (or)  If the user were to store data....  we normally use  If I were, If they were but this usage confuses me. I've tried searching in search engines but haven't found any answer!
If I was... If I were...   When is it correct to use "If I was" vs. "If I were" in standard English?
Why is it considered so dangerous to travel in South Africa? As, the above link shows, other countries have similar murder rates but they are not in the radar of international travelers.  For example, as seen in the list, Puerto Rico has similar statistics. But, personally, I never heard of Puerto Rico to be a dangerous place to travel.  Why is it considered so dangerous to travel in South Africa? Is that due to the incompetent law enforcement agencies? What is the best way to find out a researcher's current affiliation? Let's say I know a name and a field, but not much more.   A google search seems like the most obvious approach, but unfortunately university personnel or research group pages often seem to be quite poorly maintained, and it is not uncommon that someone is listed even if they left more than a year ago.  Early-career researchers are particularly difficult to track down since they often have less of a "presence" on institution webpages and are likely to be moving relatively frequently. Magnetic field lines When I searched the net about magnetic field lines,  told something about contour lines and that magnetic materials placed along a magnetic field has some specific loci, which i did not understand. Can someone explain it to me in details.  Also how do we know that tangent to a magnetic field line gives the direction of magnetic field? I am very confused. Photoelectric effect in a a frequency range I know how to calculate the kinetic energy of the emitted electrons   $$KE=hf-\phi$$  And the number of the emitted electrons, but this is valid for a certain frequency  $$N=\frac{IA}{hf}=\frac{P}{hf}$$  What happens if I have a frequency range? for example between λ1 and λ2?  BTW: It's not homework, I'm an engineering student,  not a physics student Mobile site says "your answer couldn't.." when submitting a question edit that creates a new tag Noticed this on Bicycles, but I presume it affects any Stack Exchange site   Write question Edit question, write a new tag Submit edit   When performing the above steps, I properly get an error message, but it says "answer" instead of "question" or "edit". Started new job. Rollover previous employer 401k to new 401k, IRA or Roth IRA? In node.tpl.php, I have done some changes, like creating an array of paragraphs:      $paragraphs = explode("&lt;p&gt;",render($content));   So, I have a for loop for showing the paragraphs, like:  $number = count($paragraphs); if($page){   print render($paragraphs[0]);   for ($i=1;$i&lt;$number;$i++)       {          print render($paragraphs[$i]);        &lt;a href="#commenting"&gt;Put comment for Paragraph &lt;?php echo $i?&gt;&lt;br&gt;&lt;/a&gt; &lt;?php  } ?&gt;     &lt;a id="commenting"&gt;&lt;?php print render($content['comments']); ?&gt;&lt;/a&gt; &lt;?php }?&gt;   As you can see I want to create a hyperlink under each paragraph, so when user click on it, they can put comment on the paragraph, But right now, when they click on the hyperlink, it will  jump to the end of the page, which has the comment form.  If you check the CommentPress website, in the right column, you can see for example, it is said: 5 Comment on Paragraph 1, and when you click on it, it will show the comments and the comment form under that link, I want to have the same thing, I mean, when users click on the link under each paragraph, the comment form displays under that link instead of jumping to the end of the page. How prove this $\lim_{n\to \infty}\sin{n^m}$ divergent. show that $$\lim_{n\to \infty}\sin{(n^m)}$$  divergent,where $m\in N^{+}$  I have kown $$\lim_{n\to\infty}\sin{n^2}$$  to be divergent and dense in $[-1,1]$. This is very  famous problem,the problem is first is post $AMM$( The American Mathematical Monthly,1970-1975) problem,and after some years  $AMM$ post $\sin{(n^{14})}$ in $[-1,1]$ was dense? and this is open problem.so I Guess  $$\sin{(n^m)}$$ is dense in $[-1,1]$. How to switch from Resident visa to Tourist visa status in the Schengen area? Connect to a MySQL server over SSH in PHP I have my database on remote Linux machine, and I want to connect using SSH and PHP functions (I am currently using ssh2 library for that). I tried using mysql_connect, but it gives me can't access (although I have granted permission) when I tried using this function:  $connection = ssh2_connect('SERVER IP', 22);  ssh2_auth_password($connection, 'username', 'password');  $tunnel = ssh2_tunnel($connection, 'DESTINATION IP', 3307);  $db = mysqli_connect('127.0.0.1', 'DB_USERNAME', 'DB_PASSWORD',                           'dbname', 3307, $tunnel)     or die ('Fail: '.mysql_error());   I got error "mysqli_connect() expects parameter 6 to be string, resource given". How can I resolve this? Using apt-get to remove packages and dependencies Let $f(\sin x)$ be a given function of $\sin x$.   How would I show that $\int_0^\pi xf(\sin x)dx=\frac{1}{2}\pi\int_0^\pi f(\sin x)dx$? Find and replace text within a file using commands Thailand visa exemption: any rule limiting number of entries per year? Can we decrypt in this order when the message is encrypted twice? When starring a message from the star board, it's not reflected in the main chat window Enumerate alignment problem in theorem environment I'm using amsart. When I create an enumeration inside a theorem environment, the numbering is not aligned properly:  Theorem 14. (1) (2) (3) (4)   How do I shift the (2),(3),... to be aligned with (1)?  MWE:  \documentclass{amsart} \newtheorem{thm}{Theorem}[section]  \begin{document} \begin{thm} \begin{enumerate} \item Item 1 \item Item 2 \item Item 3 \end{enumerate} \end{thm} \end{document} How accurate is the GPS on the iPhone's Find My iPhone app?  I used Find My iPhone app to track a friend. The first 3 stops were dead on but when it refreshed it showed them to be several streets over from actual location. What could cause that? Error: j_id0:j_id1:j_id28:j_id30: Validation Error: Value is required PGFplots foreach equivalent to TikZ's with multiple variables separated by a slash