I want to connect my Dell (Windows 7) to my Acer (Windows Vista) and use them as dual monitors. The screen on my Dell is broken and I can't read anything on it. I tried to hook it up to my television and that didn't work. I found out that I need a VGA to HDMI adapter.  Is it possible to connect my two laptops even though they have different operating systems? Do I need any specific cables? I have three cables but I'm not sure if I can use them. One has two ends that seem like you can use them for the phones or something. Any help is appreciated.
Is it possible to make my laptop's screen act as a second monitor for my desktop computer?
How do you reverse a string in place in C or C++? How to write a Hello World application in Java? When I googled stomach flu, there were many questions and statements like      How do you get the stomach flu?    Or     Difference between a stomach flu and food poisoning    Or      Six facts about stomach flu   When do you use the, a or nothing? And which should I use for a sentence like "I got a stomach flu from someone" ? $(\Bbb R,+)$ is a topological group. Is there any other group structure on $\Bbb R$ such that it is still a topological group and this group is not isomorphic to $(\Bbb R,+)$ ?  Refer to  for the general problem. In that problem I have conjectured that there is no such group however I couldn't prove it. What are these cartridges that many characters have in the Star Wars movies? Admiral Ozzel has them on both sides of his uniform (upper chest).  Most Imperial officers seem to have them.  Han, pictured also here, has three such cartridges on his jacket.  I'd like to make such a jacket and use anything that looks like them.  I figure they are most closely related to cartridges for guns.  (which is what I imagine they are in the films).  But does anyone know the real scoop on them?  What is their purpose in the Star Wars universe?  Admiral Ozzel:    And Han Solo: Can I register a domain name that contains a company name or trademark? I wonder is it legal to register a domain name that contains a company name. For example cococola.cc (considering that this domain name is available). Can I buy and use any domain names that contain a name of a trademark? I ajaxly call a route and pass data to it, In my controller, I want to get $_POST['var'] , $_POST['var2'], it seems because of using HttpFoundation in drupal 8, $_POST and $_GET are not exists in old method, How I can access $_POST parameters in custom Controller? How does $e^{i x}$ produce rotation around the imaginary unit circle? Euler’s formula states that $e^{i  x} = \cos(x) + i \sin(x)$.  I can see from the MacLaurin Expansion that this is indeed true; however, I don’t intuitively understand how raising $e$ to the power of $ix$ produces rotation.  Can anyone give me an intuitive understanding? Prime divisors of the integer $n^2+n-1$ (using the Legendre symbol) What made me have a question is the following problem.     The prime divisors $p\not=5$ of the integer $n^2+n-1$ are of the form   $10k+1$ or $10k+9$.   I thought $\left(\frac 5 p\right) = 1$, because $5 \equiv 1 \pmod 4$.  So $\left(\frac 5 p\right) = (-1)^{p-1}\left(\frac p 5\right)=1$ by qudratic reciprocity.  Then $p$ should be of the form $2k+1$  But I think there is something wrong, and I have lost.  Is there someone to help me? How do I suppress the "New release '12.10' available" message? When I ssh into my  box, I get this message:  Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-32-generic x86_64)   * Documentation:  https://help.ubuntu.com/  New release '12.10' available. Run 'do-release-upgrade' to upgrade to it.  Last login: &lt;redacted&gt; $   But I don't intend to upgrade to 12.10, because Mythbuntu recommends using LTS releases only.  How do I suppress the "New release '12.10' available" message?  I don't want to be notified until the next LTS release is available.  I've already gone to Update Manager > Settings > Updates and selected "Notify me of a new Ubuntu version: For long-term support versions", but that didn't get rid of this message. How much space does Ubuntu take up after it's already installed? I know how much space is required to install Ubuntu.  How much space does a Ubuntu installation take up on the disk? Typesetting a function defined by case analysis Can any one suggess me the code to write this equation in LaTeX. Agent Smith, in the first Matrix movie (The Matrix) talks about how the machines originally created a paradise setting and humans didn't accept it, so it went back and created a more realistic one that humans would accept.  The human bodies, as we've seen, are kept in tanks and the body is kept asleep.  But why did the Matrix need to provide any kind of simulation for the brain to experience?  Why couldn't it have just kept all humans in a medically induced coma?  Or performed something equivalent to a lobotomy on every human?  Why did the Matrix need to spend the resources to keep the humans in good mental shape? How to create quizzes with macqtex? When should I create a new tag? How do I request a new tag if I don't have enough rep? Are there any holidays in Middle Earth, except Yule, Lithe, New Year in Gondor and Durin's Day? Primary ideals of $\mathbb{Z}$ Let $R=\mathbb{Z}$ I must prove that      In $\mathbb{Z}$ the primary ideals s are precisely the ideals $(p^k)$ where $p$ is a prime number and $n\ge 1$.   $$$$ The definition of primary ideal.     Definition. An ideal $I$ of the ring $R$ is called primary if for all $a,b\in R$ $$(ab\in I\quad\text{and}\quad a\notin I)\Rightarrow b^n\in I, \text{for some positive integer $n$}.$$   Therefore I must prove that      $$(n)\;\text{is primary in}\;\mathbb{Z}\iff n=p^k, k\ge1,p\ge2,\;\text{where}\;p\;\text{is a prime}.$$   Proof ($\Leftarrow$) We suppose that $n=p^k$ for same prime $p$ and $k\ge 1$. Let $a,b\in\mathbb{Z}$ such that $ab\in(p^k)$ and $a\notin (p^k)$. Then $p^k\nmid a$, but $p^k \mid ab$ I no longer know how to proceed.  $(\Rightarrow)$ Let $(n)$ a primary ideal and we suppose for absurd that $n$ is not a power of a prime, then? how could I proceed?  Now, let $ab\in (p^k)$ with $a\notin(p^k)$, then $p^k\mid ab.$ Can I conclude that $p^k\mid b$?   How can I set up the other implication? Thanks Should I not answer my own questions? Batch renaming files with pattern I have some files named like these:  63018933.mp4?token=1325697436_b0c3e70c6e339380b4a484c576a8c287  63808488.mp4?token=1325697401_4ae5f7a68d93873c8881b303e7655e14  How do I rename all them to, for example 63018933.mp4(remove characters after mp4)? $F_\sigma$-subsets in a normal space can be separated Let $X$ be a normal Hausdorff space and let $C,D$ be two $F_{\sigma}$ subsets of $X$ such that $\overline{C} \cap D = \emptyset$ and $C \cap \overline{D} = \emptyset$.  Prove there exists disjoint open subsets $U,V$ such that $C \subset U$ and $D \subset V$.  No idea how to show this. Can you please help?