Letters in Math mode appear in greek
Problem with typesetting maths content in an unusual font in beamer
An example of the nucleus of an atom being in an excited state is the , which was a theory devised by the Astronomer Fred Hoyle to help describe the vast quantities of carbon-12 present in the universe, which wouldn't be possible without said Hoyle State.  It's easy to visualise and comprehend the excited states of electrons, because they exist on discrete energy levels that orbit the nucleus, so one can easily see how an electron can excite from one energy level into a higher one, hence making it excited.  However, I can't see how the nucleus can get into an excited state, because clearly, they don't exist on energy levels that they can transfer between, but instead it's just a 'ball' of protons and neutrons.  So how can the nucleus of an atom be excited? What makes it excited? Say, for example, you and a group of people were all sailing out in the ocean and something happens...then you say,  "I guess we are all in the same boat"  You are literally in the same boat with everyone else, and your current situation is the same as everyone else.  Now such a phrase can be applied literally and figuratively. I was wondering if there was a word that would mean both literally and figuratively. I know this is a tad bit of an oxymoron, but I was curious to see if there was such an "all encompassing" word for this. Consider the following Gaussian Integral $$I = \int_{-\infty}^{\infty} e^{-x^2} \ dx$$  The usual trick to calculate this is to consider $$I^2 = \left(\int_{-\infty}^{\infty} e^{-x^2} \ dx \right) \left(\int_{-\infty}^{\infty} e^{-y^{2}} \ dy \right)$$  and convert to polar coordinates. We get $\sqrt{\pi}$ as the answer.   Is it possible to get the same answer by considering $I^{3}, I^{4}, \dots, I^{n}$? How can I use an align environment flush left? Is there a way possible to imitate the align environment for math mode commands, without having all writing being placed toward the center on the output page?  MWE:  \documentclass{article} \usepackage{mathtools}  \begin{document} \begin{align*} \cos\theta_1 \cos\theta_2-\sin\theta_1\sin\theta_2 &amp;= \cos(\theta_1 +\theta_2) \\ \sin\theta_1 \cos\theta_2 + \cos\theta_1 \sin\theta_2 &amp;= \sin(\theta_1+\theta_2) \end{align*}  \end{document} UIRefreshControl without UITableViewController When should one use the "recent past"? How much time should have passed? Date comparison : which date format? I'm trying to install a dual boot (with Window 10) on my new XPS-15 (with a SSD 256Go).  Everything works well (following  until I go on step "Installation type".  Where I can't select "Something else", and I already have the partition table but completely empty. I can't see any existing partition, or add new one. Abelianization of free group is the free abelian group is it possible to skip immediately preceding time points? So that, if, for example, you are using model order 2, that is, two time points, but not the two immediately previous time points, but rather, say for example, skipping 2 points, and then using those two points.  So, e.g., it would be y=x(t-3) + x(t-4). Cron jobs in Drupal 7 I have a PHP file that does some task in consistent intervals.   I have placed that PHP file inside a custom module folder, but I found that Drupal functions like drupal_set_message() are not available inside the PHP file.   How do I include Drupal functions inside this PHP file? How do I set up this php file to be run as a cron job? A uncharged capacitor $C$ is connected to a battery with potential $V$. It becomes fully charged and has a charge $Q=CV$ stored on it.   Now the polarity of the battery is reversed. The capacitor will have the charge $Q$ still but with polarity reversed too.  My question is: What is the work done by the the battery?  According to me, during 1st charging it will do a work of $QV$. The energy of the capacitor is also not changing, then what is the work done to change its polarity? I am trying to include long URLs in a bibliography, but those often overflow into the margin of the document.  I have seen a number of questions about breaking URLs in bibliography, but after trying every solution, I have not found anything that completely solves my problem. There are apparently a number of ways to allow LaTeX to break line at different places in URLs. But in my case, even though LaTeX breaks line at some places, I still get overflow for some URLs.  Here is the code I am using:  \usepackage[hyphens]{url} \usepackage{hyperref} \hypersetup{breaklinks=true}  \urlstyle{same} \usepackage{cite}   and with these bibliography entries:  @misc(webrtc,     organization={W3C WebRTC Working Group},     title={WebRTC 1.0: Real-time Communication Between Browsers},     howpublished={\url{http://www.w3.org/TR/2012/WD-webrtc-20120821/}} )  @misc(android_javascriptinterface,     organization={Android Open Source project},     title={Android WebView addJavascriptInterface reference},     howpublished={\url{http://developer.android.com/reference/android/webkit/WebView.html#addJavascriptInterface(java.lang.Object, java.lang.String)}} )   I'm getting this, for example:     The entry about Android overflows in the border: my column should end where you can read "browsers." on the first line or "http:" on the third line.  Edit: when trying to create a minimal example for my problem, I noticed that this only occurs when using the IEICE template file. You can find it here: , but if you do not want to have to extract the archive and locate the correct file, I have put it there also:   Here is my minimal example:  .tex file:  \documentclass[paper]{ieice}  \usepackage[hyphens]{url} \usepackage[hidelinks]{hyperref} \hypersetup{breaklinks=true} \urlstyle{same} \usepackage{cite}  \title{Test document} \begin{document}  this\cite{upnp_spec} is a test\cite{android_javascriptinterface}  \bibliographystyle{plain} \bibliography{refs_min}  \end{document}   and refs_min.bib file:  @misc(android_javascriptinterface,     organization={Android Open Source project},     title={Android WebView addJavascriptInterface reference},     howpublished={\url{http://developer.android.com/reference/android/webkit/WebView.html#addJavascriptInterface(java.lang.Object, java.lang.String)}} )  @misc(upnp_spec,     organization = {UPnP Forum},     title = {UPnP Device Architecture 1.1},     howpublished = {\url{http://upnp.org/specs/arch/UPnP-arch-DeviceArchitecture-v1.1.pdf}} )   Is there any way I can fix this ? I have a valid B1/B2 visa valid to US till March 2019 on Indian passport, I changed my citizenship to Australian. Is my B1/B2 visa on Indian passport valid? One of the most common security best practices these days seems to be . I've never really found a good explanation for that, but I'm assuming it's to minimize the risk of a  malicious or infected script within the webroot from reading the database password.  But, you still have to let WordPress access it, so you need to expand open_basedir to include the directory above the document root. Doesn't that just defeat the entire purpose, and also potentially expose server logs, backups, etc to attackers?  Or is the technique only trying to prevent a situation where wp-config.php would be shown as plain-text to anyone requesting http://example.com/wp-config.php, instead of being parsed by the PHP engine? That seems like a very rare occurance, and it wouldn't outweigh the downsides of exposing logs/backups/etc to HTTP requests.  Maybe it's possible to move it outside the document root in some hosting setups without exposing other files, but not in other setups?    Conclusion:  After a lot of back-and-forth on this issue, two answers have emerged that I think should be considered the authoritative ones. Aaron Adams makes a good case in  wp-config, and chrisguitarguymakes a good . Those are the two answers you should read if you're new to the thread and don't want to read the entire thing. The other answers are either redundant or inaccurate. Laptop randomly waking up = Hibernate / Low Battery? How do I get evolution items like King's Rock? Are the off-world colonies really a "golden land of opportunity"? In Blade Runner, there seems to be quite a  for emigration to the off-world colonies, e.g.,      "A new life awaits you in the off-world colonies, a chance to begin   again in a golden land of opportunity and adventure."   Is there any evidence that people emigrating are actually better off than staying on Earth?  The job descriptions of the replicants Deckard is tasked with "retiring" don't seem consistent with the colonies being wonderful places. If the colonies offered a good life, would they have to do so much advertising? I have an unlocked North American (Canada) iPhone 5s, where can I buy a data only SIM card in Japan ? I'm not interested in renting nor in a voice plan, I'll be staying for 4 weeks.  I'll be landing in Tokyo, so preferably around there. Can I get them from the airport somewhere ? I'm assuming I won't have problems with the network/frequencies, am I correct ? Lost USB BlueTooth Dongle for Keyboard and Mouse I lost my USB bluetooth dongle (from HP) which I used for a wireless keyboard and mouse. They came together in a set when I bought my last HP computer.  Are the keyboard and mouse useless now? or will any bluetooth dongle allow them to work? If I can just buy a new one - any recommendations on a replacement (good price, and perhaps works with Windows and Ubuntu out-of-the-box?   Forgive me if this is an easy question. I'm just not that familiar with wireless mice/keyboards.