Pass by value or Pass by reference in Java: Issues with immutable and mutable objects
Is Java "pass-by-reference" or "pass-by-value"?
Good books for a high schooler self-studying Abstract Algebra? Does anyone have any suggestions for abstract algebra books particularly suited to self-study?     Here is some background and motivation, if it's helpful.  I'm currently a junior in high school, but I have some familiarity with groups, rings, polynomials and fields, as I went through Fraleigh's book. I liked its writing style, but many of the problems were not helpful. I would like to get better at algebra with some other book, particularly one that's aimed at someone who already has a little familiarity with the objects, but is by no means completely comfortable.  One of my longer-term goals is to learn a bit of algebraic number theory, as I've only been studying elementary number theory. That's why I feel it  good to learn more algebra first. (I'd also be interested in suggestions of other good subjects to learn prior to tackling algebraic number theory.)  I was considering using one of Lang's books, since they seem pretty universal, but I've heard rumors that they are very terse and not good for self-learning. Convergence of $\int_0^\infty $sin$ (x^p) dx$ Where is the open source project for the WMD editor used on this site? Finding all solutions for a system of equations with constraint on the sum of absolute values I am looking for a fast algorithm to find all integer solutions for the following system of linear equations ($c_1,\ldots,c_n \in \mathbb{Z}$ and $r\in \mathbb{N}$ ):  $x_1+x_2=c_1$  $x_3+x_4=c_2$  ...  $x_{2n-1}+x_{2n}=c_n$  $|x_1|+|x_2|+\ldots+|x_{2n}|=r$  $x_1,\ldots,x_{2n} \in \mathbb{Z}$   Also can we find the number of solutions before solving the system? When I was using ubuntu 14.04, it's easy to set title. Just press F2 or move mouse to top menu. But there is no menu on ubuntu 16.04 and press F2 can't change the title. What should I do? Re-install Ubuntu without losing data in home folder The coefficient of an explanatory variable in a multiple regression tells us the relationship of that explanatory variable with the dependent variable. All this, while 'controlling' for the other explanatory variables.  How I have viewed it so far:  While each coefficient is being calculated, the other variables are not taken into account, so I consider them to be ignored.   So am I right when I think that the terms 'controlled' and 'ignored' can be used interchangeably? Prove $f(x) = \sqrt x$ is uniformly continuous on $[0,\infty)$ I have seen a proof in   Below shows an alternative proof. Please correct me if im wrong.  Proof:  For any given $\varepsilon &gt;0$,  Let $\delta_1 = \frac{\varepsilon}{2}$, $\forall x,y \in [1,\infty)$ with $|x-y|&lt;\delta_1$  Since $|\sqrt x + \sqrt y|\geq2$  $$|\sqrt x - \sqrt y|  = \frac{|x-y|}{|\sqrt x+\sqrt y|} &lt; |x-y| &lt; \delta_1 = \frac{\varepsilon}{2}$$  Hence, $\sqrt x$ is uniformly continuous on $[1,\infty)$.  $\sqrt x$ is continuous on [0,1] , so $\sqrt x$ is uniformly continuous on [0,1].  So, there exist $\delta_2 &gt; 0$ such that $\forall x,y \in [0,1], |x-y|&lt;\delta_2$, $|\sqrt x -\sqrt y| &lt;\frac{\varepsilon}{2}$  Let $\delta = \min{(\delta_1,\delta_2)}$  $\forall x,y \in [0,\infty)$ with $|x-y|&lt;\delta$,  Case 1: $x,y \in [0,1]$ Proven above as $|x-y| &lt; \frac{\varepsilon}{2} &lt; \varepsilon$  Case 2: $x,y \in [1,\infty)$ Proven above as $|x-y| &lt; \frac{\varepsilon}{2} &lt; \varepsilon$  Case 3: $x \in [0,1] , y \in [1,\infty]$  $$|\sqrt x-\sqrt y| = |\sqrt x -1+1-\sqrt y| \leq |\sqrt x-1| + |\sqrt y -1| &lt; \frac{\varepsilon}{2} + \frac{\varepsilon}{2}= \varepsilon$$  by applying case 1 and case 2. How to disable sticky corners in Windows 10 It seems Microsoft has tried to solve this problem .  In Windows 7, there is no boundary between monitors and the mouse can move freely across the top of the screen between my 3 monitors, provided I had set their heights equal in display settings. Windows 8 introduced sticky corners. See .  Windows 10 got sticky corners as well. There are a few pixels at the top corners of each display where the mouse cannot cross over onto the other display. One must move the cursor down to avoid this region in order to get to the next display.  The image shows roughly the region where mouse movement is not permitted in Windows 10, but is allowed in Windows 7.    Personally, I had no problem with unrestricted mouse movement across the top of my screens - I got used to "aiming" for the x, and the convenience of unrestricted cursor movement. Like all the people who wanted to disable it in W8, I'm wondering if there is a way to disable it in W10.  Edit to address possible duplicate:  Although the problem is identical to the one in , solutions to solve the problem in W8 involving editing the registry key MouseCornerClipLength do not work in W10, since that registry key is not present in W10. Also adding that key and setting the value doesn't work. I searched the entire registry and couldn't find it in another location. No other W10 keys in the node referenced in the W8 solution are obvious replacements.  Edit to address possible solutions in comments  harrymc's  and  that worked for for Windows 8.1 do not work in Windows 10. Lenovo Yoga 13 Realtek wireless driver Spacing around \left and \right Why does the addition of a \left and \right introduces an extra space around the formula? Specifically, why do $\cos(\theta)$ and $\cos\left(\theta\right)$ render differently?  Is there a way to use resizable delimiters without introducing the spurious spaces?  Why did Knuth design it like this?  Edit: This occurs too, if \operatorname{MYOP} or some other operator, like \lim, \min etc. is used. (This edit is basically to make it easier to find this answer.) Can I install a ROM made for a different device? I own a MicroMax A100. I want to install the latest version of a different ROM (Samsung or Nexus).  Is it possible? If so, can you tell me how?  If not, can I install a ROM made for a different device, but from the same manufacturer? For example, could I install a ROM for the MicroMax A110, which is the successor of A100? Do SAS expanders work transparently with SAS controllers? I'm new to SAS expanders and I'm trying to get things right. I understand that SAS expanders, when used with SAS controllers which supports expanders, allows you to utilise the full capacity of supported drives on a controller.  However, say I've got a SAS controller with 4 x SSF-8087 ports, which by itself would support 16 disks. I could then, as far as I understand, instead connect each of these ports to an expander to increase disk capacity.  However, will the SAS controller "see" all disks as if they were connected directly to the controller and not through an expander. Could I look at controllers as switches in a network? Would I be able to create a RAID from a disk on expander 1 and expander 3?  UPDATE:  I don't really have a specific project where I need to use SAS expanders. I'm just curious about how they work, and was thinking about how it would work if I used one or more SAS expanders with a LSI MegaRAID controller (9260-16i) which is running in one of our servers. However, I haven't really put any thought into the distinction between "local" disks and disks in another enclosure. The LSI MegaRAID controller has 4 SFF-8087 ports, which makes it capable of accomodating 16 drives. I'm trying to currently rename a large set of files and have been using quite kludgy methods to do so, such as:  rename 's:(.*)\.MOV:$1.mov:g' *.MOV rename 's:(.*)\.JPG:$1.jpg:g' *.JPG   What I'd really like to do is to be able to combine all of these commands using the . Evidently, using this operator, you can transform items to lower case. The problem is that I need to convert only the extensions. Is there a way to do this using this command? I need to essentially transform the capture group in the following expression to lowercase: ^.+\.(.+)$. Is there a way to do this? I'm kind of new to these kinds of transformations. I am trying to figure out how can I disable/hide the App Name in MacOS X Lion dock. I've also attached an image so you can see what I mean.    Someone has any idea about how can I hide that? Beamer - create subsubsection page When to use static methods SQL Server 2000 on Windows 10 I need to install SQL Server MSDE 2000 SP4 on Windows 10.  I have other machines that run Windows 7 and 8.1 and SQL Server MSDE 2000 works fine (with merge replication configured too).  Now I testing the same scenario with Windows 10, but setup is closing unexpectedly during installation.  I know that this version is very old, but is there a workaround to install it on Windows 10? Integral solutions of hyperboloid $x^2+y^2-z^2=1$ Are there integral solutions to the equation $x^2+y^2-z^2=1$? Backup whole OS