The difference between sick and ill
Is there any difference between being ill and sick?
Device not detected in Eclipse when connected with USB cable How to fill down in Numbers without dragging? Autoexpand UITextView height dynamically in ios 6-digit password - a special decoding method At the start of the movie it says:      "A long time ago in a galaxy far, far away...."   Does this mean that the entire Star Wars saga takes place in a single galaxy? To my understanding a galaxy isn't very big compared to the universe itself. Star Wars has many different sentient races, and the way they are presented suggests that most planets are host to only one of them (some exceptions like naboo). This strongly leads me to believe there should actually be more galaxies in the Star Wars universe (hehe).   Another thing, I think it's safe to assume that even if the entire saga takes place in one single galaxy, their researchers can observe other galaxies (I think we started doing that in the 1600s, and they are a lot more technologically advanced than we were back then). When Obi-wan is looking for Kamino (the rain planet with the cloners) the librarian says something like "If it's not in our records, it doesn't exist", so she must be convinced that the entire universe has been explored.    If the entire universe has been documented, why wouldn't they go to those other galaxies? The technology seems to be advanced enough to hop to another galaxy. Is there any canon material that suggest that traveling between galaxies is done? If not, is there a canon explanation why they don't? How to prove positive semidefiniteness of two matrices through Schur Complement? Let matrices $X$ and $Y$ be positive semideﬁnite. Show that $X \succeq Y \succ 0$ is equivalent to $Y^{-1} \succeq X^{-1}$.   The teacher tells me that it is easy to prove via the Schur complement. But I could not get his idea. Could anyone help me and give me some intructions? Thanks in advance! Lightning Web Component embedded in Visualforce Page via Aura Component and App not displaying I am writing a lightning web component that is going to be used in Salesforce Classic, Lightning Experience and an Employee Community. It does not HAVE to be a lightning web component - I could use a traditional Aura Lightning Component if I must.   However, what I am finding is that the visualforce page does not work, even when the lwc component is embedded in a aura component that is then used with Lightning Components for Visualforce. I can see from the documentation  that using a lwc directly from within visualforce is not supported, but I was under the impression that it may work if wrapped in an aura component.   My question then is this:  Has anyone had success having a lwc wrapped in an aura component display successfully within Visualforce? Or is this completely unsupported behaviour? Cardinality of set of real continuous functions How do I disable search-as-you-type text in Ubuntu 17.10 and later? I cannot find enable-interactive-search in    gsettings set org.gnome.nautilus.preferences enable-interactive-search true.     I searched using    gsettings list-recursively | grep search     and    gsettings list-recursively | grep interactive     but no such option.  Can you help me disable this in Ubuntu 17.10 and later? How do I get the MAX row with a GROUP BY in LINQ query? How does "proof of effort" make a question better? It seems like many questions by new users are downvoted immediately.  Sometimes there is a comment to the tune of "lacks research", "we're not here to do your homework", or "show us some effort".  Now I wonder, what does it matter how much work someone has done before posting?  If someone can ask a good question in 5 seconds, more power to them.  To illustrate this point, look at how you could "improve" a question to include proof of effort.  You could put in 5 failed code snippets and their in- and output.  This would make for very long questions with a high noise ratio.  Another suggestion is to add "research".  By "research", I suppose most programmers mean "Google".  So this is basically a suggestion to add a list of fruitless Google queries.  That doesn't sound interesting either.  How can "proof of effort" turn a bad question into a good one? Let $A$ be an $m \times n$ matrix of rank $r$, let $I$ be a set of row indices such that the corresponding rows of $A$ are independent and let $J$ be a set of $r$ column indices such that the corresponding columns of $A$ are independent.  Let $M$ denote the $r \times r$ submatrix obtained by taking rows from $I$ and columns from $J$.  Then $M$ is invertible.  So far I've got: Let $B$ be the $m \times r$ matrix obtain from taking the rows from $J$.  $B$ is row-reducible to having a pivot in each column or else $Ax = 0$ has more than one solution, a contradiction.  Also, the dimension of the row space of $B$ equals $r$ as well. How to ‘guess’ if a noun is countable or uncountable? What does the notation $S^n$ mean? I see this notation a lot, but I can't seem to find an answer in my google searches. In particular I am looking at the question      Let $\alpha:S^n\rightarrow S^n$ be the antipodal map. Prove that $n$ is odd, then $\alpha\simeq \operatorname{id}.$    If it is an arbitrary symmetric group, then I understand, but I have seen $S^1$ be used for the circle. I am trying to solve an integral in $k$-space where I want to calculate the ratio of the average energy of an arbitrary electronic band ($E(k)=k^n)$ to the square of average group velocity of electrons($v_g   = k^{n-1})$ approximately in the form of this expression given by $$L=\frac{\frac{\sum_{\mathbf{k}}k^{n}}{\sum_{\mathbf{k}}1}}{\left(\frac{\sum_{\mathbf{k}}k^{n-1}}{\sum_{\mathbf{k}}1}\right)^2}\;.$$  Now, I want to do this for $d$-dimensions, so I convert this sum to integral.  $$L=\frac{\dfrac{\int_{0}^{k_f}k^{n} d^d k}{\int_{0}^{k_f}1d^d k}}{\left(\dfrac{\int_{0}^{k_f}k^{n-1}d^d k}{\int_{0}^{k_f}1d^d k}\right)^2}$$ where $d^dk  = \dfrac{d \pi^{d/2}}{\Gamma(\frac{d}{2}+1)}k^{d-1}dk$ is the volume element in $d$-dimensional space.  I want to get a simple expression for $L$ and how it depends with $k_f,n$ and $d$. any physical insight into this integral could also be helpful. How to determine which form has been submited and to validate them in a servlet Calculating days of week given a week number Given a week number, e.g. date -u +%W, how do you calculate the days in that week starting from Monday?  Example rfc-3339 output for week 40:  2008-10-06 2008-10-07 2008-10-08 2008-10-09 2008-10-10 2008-10-11 2008-10-12 I have been racking my brains over how in bloody hell can you have a different header for the title (or first) page of a document.   I am not asking here how I can not have a header by clearing the page style for this page using \thispagestyle{plain} or something of the sort but how can I have a different header just for the very first page.   Please help as I have a deadline to meet.   So far, I have not been able to find anything useful on TeX.SE.   Here is some of my code to give you some idea of what I want to achieve:  \documentclass[12pt]{article} \usepackage{amsmath} \usepackage[margin=2.5cm]{geometry} \usepackage[utf8]{inputenc} \usepackage{amsfonts} \usepackage{fancyhdr} \usepackage{hyperref} \usepackage{graphicx} \usepackage{csc} \pagestyle{fancy} \fancyhead[L]{**Left Header for all pages**}\fancyhead[R]{**Right Header for all pages**} \lhead{**Left Header for just the first page**} \rhead{**Right Header for just the first page**} \title{Problem Set 1}         \author{MyBloodyName} \date{January 31, 2017} \begin{document}     \maketitle     \newpage     Easier? \end{document} How do I read an entire file into a std::string in C++? Mobile phones and mobile internet in Italy Buongiorno! Suppose I step down from the plain in Fiumicino. What is the fastest way to get hold of Italian SIM-card with some talking minutes and some Internet? The latter is more important than the former.  So, my requirements:   Good coverage in main cities (Rome, Venice, Milan, Florence) Good for 2 weeks (after that I'm going to leave the country, the SIM is going to lose its value anyway) Good for massive internet usage is in store for maps, orientation, etc. Cheap. :)   Now, I know that there are 3 main communication providers in Italy: Vodafone, Wind and the third one. :) Which one? Which one won't leave me destitute and won't sue me over the border months after for some unknown reasons? What I have to look for?