I have recently bought an HP laptop (HP Pavilion Touchsmart Sleekbook 15), pre-installed with Windows 8. I do like windows 8, but I wish to also have the functionality of ubuntu on my laptop.  I do not like the look and risks of GRUB, as I care for Windows 8 more than Ubuntu (Cannot replace Windows), so I need to use Windows Boot Manager of the metro UI. (Which I also like the look of more).  I know my computer has Windows installed in UEFI mode, but I am also not big on complicated steps and heavily modifying my laptop. I have looked for multiple solutions to this problem, but one is just windows boot manager in BIOS mode, another is using Grub in EFI mode.  I definitely know I can disable secure and fast boot on my computer, and I can manually partition anything I want. I do not know much about linux either, so I need help on a simple, reliable way to dual-boot ubuntu and windows 8 on my laptop in EFI mode on Windows boot Manager. I have a live flash drive for ubuntu already, and am ready to install anything, but I am reluctant because I cannot afford another laptop.  Currently, I have Ubuntu 12.04.3 on my flash, but I can change it to whatever needed at will.  Can anyone help me do this on my laptop, or should I just give up right now? I am sick of trying to find these answers but to no solution.  All I need is a solution to   Pre-installed Windows 8 UEFI Windows Boot Manager Simple, reliable way to do this.   Thank you for all help that you can give me, -Ben  Note: This is not the same question as () at all. Here I am asking how you would go around installing ubuntu on pre-installed Windows 8 as I have NOT  installed anything yet. In the "Answered question" the asker is asking about Wubi on windows 8 preinstalled, AFTER he tried installing it. Please read both questions before flagging this down.
I'm absolutely new to Linux. I would like to know how to install Ubuntu alongside the pre-installed Windows 8+ OS.  Should I do it with Wubi, or through the Live USB/DVD?  What steps do I need to take to correctly install Ubuntu?
Accessing site-specific Help Center from iOS app Can the Stack Exchange developers add an option to access the site-specific Help Center via the iOS app?  My use case is when I read a question that I think is off-topic, and want to double-check that the wording from the site's Help supports that position, having the Help Center available would be nice. Double limit of $\cos^{2n}(m! \pi x)$ at rationals and irrationals I stumbled upon this "relation" (is the name correct?):  $$ \lim_{m \to \infty} \lim_{n \to \infty} \cos^{2n}(m! \pi x) = \begin{cases} 1,&amp;x\text{ is rational}\\ 0,&amp;x\text{ is irrational}\end{cases} $$  How is it called and why is it so? I'm really not asking for a proof since I fear it would be too complicated for me to understand, but rather for an "intuition". I used to work as a consultant and have been spoiled with nice looking slides. For instance, being able to create slides that have 2, 3, or 4 graphs (perfectly positioned and with nice headers!) at the click of a mouse button via macros.  Similarly, there are many other kinds of word slides that had multiple columns, etc. that would be nice to recreate as well as objects like "main point" boxes at the bottom that summarize a main point and ways to add a transparent highlight to any part of the screen.  Is this kind of functionality far beyond anything that LaTeX presentations can do or is there an archive somewhere of code for making more intricate presentations? 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? Extra slash added to the chat room URLs in the side bar What is a magic number, and why is it bad? How do I read in the contents of a directory in Perl? How can I implement object oriented programming in Mathematica? Plotting data seems "noisy" A club has $12$ members. They need to choose a programming team of $3$ members and a hacking team of $4$ members. Members can be on both teams, but Jack only wants to be on at most one team. How many ways can both teams be chosen?  I did two different ways. I solved if Jack chooses programming, $C(12,3)=220$ $C(11,4)=330$. In total there are $550$ different ways both teams can be picked.  But, if Jack chooses hacking, I solved $C(11,3)=165$ and $C(12,4)=495$. In total there are $650$ ways both teams can be chosen.  I was wondering if this is the correct method. I am able to backup my app's data from the root/data/data/you.package.name directory by just moving it to SD card manually. however, when i reverse the process,                                                                                                               AKA paste the data back to simulate a restore, the app just force closes, i have tried it with a bunch of apps and noticed the same reaction. Where am i wrong? Make specific color in a texture transparent I am working with very old model files that have BMP textures. The designers did not use a transparency in the textures or a separate alpha b/w texture. They used a specific color value that was then removed by the engine to create a transparency, similar to a chroma key. In this case, all textures used a bright purple/pink color.   I cannot modifying the original texture images by converting them to PNG and add an alpha. I would like to figure out how to do it all in nodes.  The goal is to have this value keyed out and transparent. I have been messing around in the shader editor and cannot figure this out.  I've also been looking around online and in this forum, but the only search terms I can think of are chroma-keying which only results in Compositing results, which I don't believe is what I'm looking for.  Here is an example of the texture (its very small) and it's context:      Any help or direction would be much appreciated! Is there any work-around if you are somewhere where images are blocked? I'm currently working in a bank, and while about 99.7% of the internet is blocked, Stack Exchange thankfully isn't (yet) however imgur is.  It means I can't view images posted alongside questions. The only workaround I have found is to search Google images for the URL, but you get a  which is a bit useless.  Does anybody know any clever tricks for viewing the images accompanying questions when you are somewhere where imgur is blocked?  Are there any plans to route the images stored on imgur through a Stack Exchange URL? Does one open a browser “on” a URL? Proof of the Hockey-Stick Identity: $\sum\limits_{t=0}^n \binom tk = \binom{n+1}{k+1}$ After reading , the most popular answer use the identity $$\sum_{t=0}^n \binom{t}{k} = \binom{n+1}{k+1}.$$  What's the name of this identity? Is it the identity of the  modified.  How can we prove it? I tried by induction, but without success. Can we also prove it algebraically?  Thanks for your help.    EDIT 01 : This identity is known as the  because, on Pascal's triangle, when the addends represented in the summation and the sum itself are highlighted, a hockey-stick shape is revealed. If $f(xy)=f(x)f(y)$ then show that $f(x) = x^t$ for some t Let  $f(xy) =f(x)f(y)$ for all $x,y\geq 0$. Show that $f(x) = x^p$ for some $p$.    I am not very experienced with proof. If we let $g(x)=\log (f(x))$ then this is the same as  $g(xy) = g(x) + g(y)$   I looked up the hint and it says let $g(x) = \log f(a^x) $   The wikipedia page for functional equations only states the form of the solutions without proof.  Attempt  Using the hint (which was like pulling a rabbit out of the hat)  Restricting the codomain $f:(0,+\infty)\rightarrow (0,+\infty)$ so that we can define the real function $g(x) =  \log f(a^x)$ and we have $$g(x+y) = g(x)+ g(y)$$   i.e $g(x) = xg(1)$ as $g(x)$ is continuous (assuming $f$ is).  Letting $\log_a f(a) = p$ we get $f(a^x) =a^p $. I do not have a rigorous argument but I think I can conclude that $f(x) = x^p$ (please fill any holes or unspecified assumptions) Different solutions are invited What is the difference between old style and new style classes in Python?  When should I use one or the other? Why do sunbeams diverge even though the sun is much more than a few kilometers away? Consider this picture of sun beams streaming onto the valley through the clouds.    Given that the valley is only (at a guess) 3km wide, with simple trigonometry and the angles of the beams, this gives the result that the position of the light source is being a few tens of km away at most.   What is wrong with the analysis? Why do we need resistors in led Proving that $GF(p^n)$ contains a unique subfield isomorphic to $GF(p^m)$ if and only if $m$ is a divisor of $n$. I am looking to prove that $GF(p^n)$ contains a unique subfield isomorphic to $GF(p^m)$ if and only if $m$ is a divisor of $n$. In the Wikipedia article:    They say that this statement has been proven by E. H. Moore in 1893.  How to go about proving the theorem? I know first I need to generate a subset, prove that it's a subfield, and then assume they are two and show it's unique.  But how to generate it in the first place? Consider the set of polynomials of the form $x^{p^m}-x=0$? Is there a way to show that it's a subfield without checking all the axioms?