In worlds, they do lane swaps that are not to be seen anywhere else. Duo bot doing jungles and top lane, or whatever.  Why do they do this exactly, and when should this be done?
I've seen a lot of games in the LCS and All-Star, and they sometimes changed bot and top lanes.   When is this a good practice? What do you gain from doing this? Should I do this to avoid counters or if my solo laner has more sustain than theirs?
Persist variables between page loads Could $X^3 + X + 1$ have a root in $E?$ Consider the irreducible polynomial $g = X^4 + X + 1$ over $F_2$ and let $E$ be the extension of $F_2 =$ {0, 1} with a root $α$ of $g.$  Could $X^3 + X + 1$ have a root in $E?$  When working through this sheet Ive come across this question in which im not sure how to answer so any help will be appreciated I have 4 servers with Debian Wheezy OS. I have Apticron installed that informs me about updates. Debian updates are realized so often that when I finish to update the last of 4 servers I get new email about new updates on the first server. I try to update all servers when I get a notification but I never know if there is a need to reboot the servers. I have read that if the directory "/var/run" contains file "reboot-required" I have to reboot the server. But I never have seen this file in "/var/run". How can I know when reboot is required? I don't want reboot my servers every time when I install new updates if it's not needed.  I understand that if I update PHP or MySQL, etc I don't need to reboot the server but updates usually contain many "lib...".  Below are 9 updates (I have received this week).  krb5-locales 1.10.1+dfsg-5+deb7u3 libdbus-1-3 1.6.8-1+deb7u6 libgssapi-krb5-2 1.10.1+dfsg-5+deb7u3 libk5crypto3 1.10.1+dfsg-5+deb7u3 libkrb5-3 1.10.1+dfsg-5+deb7u3 libkrb5support0 1.10.1+dfsg-5+deb7u3 libruby1.8 1.8.7.358-7.1+deb7u2 libxml2 2.8.0+dfsg1-7+wheezy3 ruby1.8 1.8.7.358-7.1+deb7u2   I have no idea what is "libkrb,libgssapi", etc. How can I detect if reboot is needed? Please do not suggest to install UnattendedUpgrades to let the servers update automatically because this can cause websites going offline if something updates not correct. I was wondering if there is a name for a function that satisfies the conditions  $f:\mathbb{R} \to \mathbb{R}$ and $f(x+y)=f(x) \cdot f(y)$?  Thanks and regards! I am stuck with a rather irritating problem I ran into after installing 11.10 on my macbook pro 5,5.  I did a clean install efi booting into the setup using the desktop cd. Upon the first reboot I was presented with the "invalid arch independent ELF magic" and grubs rescue console.  I have read  but the solution is no solution for me since installing grub via live cd only means installing the mbr version and I can't seem to find any manual on how to install grub-efi while booted into the live cd.  So my question is: How can I either edit the grubx64.efi file in my EFI Partition, reinstall grub-efi with a live CD / DVD or use grub rescue commands to fix this issue? Can you terminate more than one common on the furnace C terminal? Is there a way to convert an image to grayscale? Making 3 points stick on a plane / flag with wind I have a flag I want to waft in the wind. I imported the shape as an SVG from Adobe Illustrator.  I converted the mesh to a curve.  It wouldn't let me make some subdivisons but it still seems to work with the cloth property.    When I press play, you can see the structure of the flag stops.  How can I make those last 3 points intact? Also the fill colour seems to have disappeared, do you know why and how I can bring it back?    Thanks  Steve  File here: Sum of the series $\sum _{ r=1 }^{ \infty }{ \frac { { r }^{ 3 } }{ r! } } $ Hero rescues a minor deity, granted a wish of small value; gets a girl As a high school student just starting in science fiction, I read a short story collection in paperback that included this story – not quite a short-short, but not very long either.  I think that it was written by a familiar author, since the collection was one of those “Best Of…” anthologies.    Our hero is a sympathetic young guy trying to get ahead, in love with a beautiful neighbor, but hopeless in love.  He rescues a miniature Minor Deity (and I've forgotten the mechanism – rescued from a cat perhaps?) and gets a wish in return.  The catch is that since this is only a minor deity, the value of the wish is small – and I forget the actual value, perhaps $2.49.  He asks for help winning at the races to help get the girl – and the minor deity says sure, but the payoff can only be $2.49.  How about help rescuing her from a calamity like an earthquake?  Sure, but the total damage can only be $2.49. Other alternatives are discussed, but the value can only be $2.49. Frustrated, our hero thinks about the problem, but the Minor Deity thinks he has a solution.    Later that evening, the girl knocks on the door, he opens it to her welcoming arms, and the night passes.  The next morning, our hero finds a small clipping on the floor, an article stating the latest estimates of the total value of the elements in the human body were… $2.49.  (The whole story was building to that punch line.) Can Blender render pngs with the background transparent? How do real and effective user IDs work? When a normal user wants to make change to the passwd file, the user will by setuid be given the effective user access. User becomes root temporarily and can edit passwd.  However you can only edit your password right, and not everybody else? However your effective user access is root. So how come you're not allowed to change other passwords beside yours?  When you run a program with setuid, what does it mean actually when effective user is root, but real user id is still your name? Given $|z|&lt;1$ with $z \in \mathbb{C}$ prove $\lim_{n \to \infty} z^n=0$.  My attempt given $\epsilon &gt;0$ we wish to show that there exists $\delta &gt;0$ such that $n&gt; \delta$ means $|z^n-0| &lt; \epsilon$.  For $n \in \mathbb{N}$. We have $|z^n|=|z|^n$. We wish $|z|^n &lt; \epsilon$. This means,  $$n \ln |z| &lt; \ln \epsilon$$  But because $\ln |z|&lt;\ln 1=0$ dividing both sides by $\ln |z|$ gives:  $n&gt; \frac{\ln \epsilon}{\ln |z|}$  So that's what we choose for $\delta$.   My question is is how can we get away from the assumption that $n \in \mathbb{N}$. Or is this correct even with the assumption? How to urlencode data for curl command? I am trying to write a bash script for testing that takes a parameter and sends it through curl to web site.  I need to url encode the value to make sure that special characters are processed properly.  What is the best way to do this?    Here is my basic script so far:  #!/bin/bash host=${1:?'bad host'} value=$2 shift shift curl -v -d "param=${value}" http://${host}/somepath $@ "Not a COM32R image" error when trying to install from a USB key Not a COM32R image boot   is a message that the console infinitely keeps spitting out when I try to install Ubuntu 10.04 from a USB. I created the USB using the StartupDiskCreator in 11.04.  What is the reason for this behavior? What do I do to set it right?   I have followed the steps perfectly, as enlisted in the . Proving $\arg(zw)=\arg(z)+\arg(w)$ How old should you be when you begin Jedi training? Can't install apps from App Store on iPhone with iOS 7 What's different about photographing at sunrise vs. sunset? I usually get better light at sunrise (compared to sunset). I do though hate to wake up early in the morning to use that light ;)  What are the biggest differences between sunrise and sunset? Overlapping matches in Regex