Merge and extend JavaScript objects
How can I merge properties of two JavaScript objects dynamically?
Is there a *simple* example showing that uncorrelated random variables need not be independent? Finding the left and right cosets of H = {(1), (12), (34), (12) ○ (34)} in S4 I have an exercise where I am supposed to find the left and right cosets of H = {(1), (12), (34), (12) ○ (34)} in S4. But how do I generate the cosets? As I have understood it you are supposed to pick a number that is not in the set H and multiply it with every number in H. But this does not exactly give the right answer. I would really appreciate it if someone gave an easy to understand explanation of how to generate the left and right cosets. When a user on our site loses his password and heads off to the Lost Password page we need to give him a new temporary password. I don't really mind how random this is, or if it matches all the "needed" strong password rules, all I want to do is give them a password that they can change later.  The application is a Web application written in C#. so I was thinking of being mean and going for the easy route of using part of a Guid. i.e.  Guid.NewGuid().ToString("d").Substring(1,8)   Suggesstions? thoughts? I am currently running a Dungeons and Dragons 4 campaign for a group of 9 players.  Whittling the group down to a more manageable size is not really an option since they are all family.  When we do combat it takes forever even if I have one player help me and allow them to go 2 at a time.  When we do story based adventure there are 2-3 players that do most of the talking and the others twiddle their thumbs.  I've tried encounters with many foes, encounters with only a few tough foes, dialog only encounters, social puzzle encounters, everything I can think of.  What else can I try to get this group more engaged? Changing content of footline in beamer Showing margins/frames in beamer slides need initfamfs modules. 15.04 is anything else supposed to be here? I am using Ubuntu gnome and my keyboard is unresponsive for encryption password. Do I need any more modules, and if so where do I add them.  # List of modules that you want to include in your initramfs. # They will be loaded at boot time in the order below. # # Syntax:  module_name [args ...] # # You must run update-initramfs(8) to effect this change. # # Examples: # # raid1 # sd_mod I want to unwrap a label which has a transparent area I'm trying to install programs/files from the getdeb repo but get a "check your internet connection" error.  Programs than I've tried include Qbittorrent and Mozilla-Plugin-VLC.    Through the terminal I get the following errors:  Err http://archive.getdeb.net/ubuntu/ natty-getdeb/apps qbittorrent amd64 2.8.2-1~getdeb2   Could not connect to archive.getdeb.net:80 (209.105.191.78). - connect (113: No route to host) E: Failed to fetch http://archive.getdeb.net/ubuntu/pool/apps/q/qbittorrent/qbittorrent_2.8.2-1~getdeb2_amd64.deb: Could not connect to archive.getdeb.net:80 (209.105.191.78). - connect (113: No route to host)   &amp;  Err http://archive.getdeb.net/ubuntu/ natty-getdeb/apps mozilla-plugin-vlc amd64 1.1.10-1~getdeb1   Could not connect to archive.getdeb.net:80 (209.105.191.78). - connect (113: No route to host) E: Failed to fetch http://archive.getdeb.net/ubuntu/pool/apps/v/vlc/mozilla-plugin-vlc_1.1.10-1~getdeb1_amd64.deb: Could not connect to archive.getdeb.net:80 (209.105.191.78). - connect (113: No route to host)   I'm not having any problems adding/removing other programs/files from my machine.  Is there a problem with GETDEB repo (and if so, is there any way to fix it on my end) or is there something wrong with my computer's configuration? When one should use spacing line \quad or \, I am trying to install linux on my laptop, a Toshiba Satellite C6550-S5200. I did it once but something happened so I removed it then I had to destroy all data on hard drive so now I have nothing on it. Well I got a iso file burned to a CD and to a flash drive. With the flash drive I get.   SYSLINUX 4.06 EDD 4.06-pre7 Copyright (C) 1994-2012 H. Peter Anvin et al  With the CD it will start booting it but somewhere loading it up, the dots turn all orange and stay that way and my CD drive turns quiet.  Oh and some more info the images work because I tried loading them up on another pc and it worked just fine.  I manage to get the CD to boot I just had to let me pc boot up first then insert the CD and have it boot the CD then. Once I get done installing ubuntu it works fine but I have to leave the PC on 24/7 for if I turn it off the PC will freeze 5-10 seconds after booting back up no matter how I install it. Where exactly does energy quantisation come in for light? Planck quantised the energy of light in order to solve the black body radiation problem. However, I am confused as to exactly what he quantised. On one hand, I have seen that he quantised the energy of oscillators in the black body (source below).     However, the second version of the story I've heard is that it is simply that light energy is given off in discrete chunks (where every photon itself can have any value of energy it likes depending on frequency and is not quantised).   To me, the first idea doesn't make sense because $E=hf$ and as $f$ can be any real number that means the energy of each photon can be any real number. I would believe the second version, however I don't understand how this version of quantisation leads to reducing the number of high frequency waves emitted and thus solving the UV catastrophe. Could you please explain exactly how releasing energy in chunks (of arbitrary size themselves) means less will be released in the higher frequencies? I currently only have remote access to this CentOS box, I need to move /var form the primary RAID to a new set of disks that was installed with more space, My current thoughts on how to accomplish this is to temporarily mount the new RAID to /tmp/var. rsync everything from /var to /temp/var then modify the fstab to point /var at the new disks.  Here is my question. how do I delete the existing /var on the primary disks once I have the new disks mounted to that location (assuming this is even possible remotely)? Why are the holodecks on Voyager in use if they have energy issues? I'm watching the first two seasons of Voyager and various episodes have commentary on having energy limitations -- but we constantly see crew using extremely complicated holodeck simulations. Why would they allow use of the holodeck if they need to conserve energy? What blueprints become available during story? As I progress, I realize that some blueprints open up throughout the story and don't have to be researched. Are these random or are they always the same and is there a list over those? Seems you can easily waste research point if you don't know that. How does Apple AppStore rank search results? What is a word that means "someone who pretends to be your friend but is actually your enemy?" What do you call someone who pretends to be your friend but is actually your enemy?  A friend suggested spy for me, but that does not nearly describe the word I need for an English project. The character is very good at manipulating how people see him. He's a good liar. And pretends to be your friend but actually is your enemy. Pie Chart without labels in beamer using pgf-pie EDIT The accepted answer completely solves my immediate problem, but for more detailed analysis of the underlying issue please refer to answer by cfr. Basically, pstricks and pdfTex don't mix well.  I have a beamer presentation with a lot of pie charts. I use pgf-pie package because it is easy and (mostly) does what I need. I have one particular pie-chart that should have no labels at all. I have tried adding  /tikz/nodes={text opacity=0,overlay}   to the code following advice found here.    \documentclass{standalone} \usepackage{pgf-pie} \begin{document}  \begin{tikzpicture} \pie [explode=0.1, color={blue!70, green!80, red, yellow} ,/tikz /nodes={text opacity=0,overlay}]{10/, 20/, 30/, 40/} \end{tikzpicture} \end{document}   Now, the strange thing is, the code works well in the example above (standalone class). However, it doesn't seem to do anything inside a beamer presentation, i.e. the labels still show. It seems that there is some sort of package conflict. How could I enable this to work in the beamer presentation? I know there are other ways to produce this but pgf-pie is quite handy otherwise.  \documentclass[12pt,compress]{beamer} \usetheme{Warsaw}  \setbeamertemplate{navigation symbols}{}%remove navigation symbols \setbeamercolor{alerted text}{fg=magenta}  %\usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} \usepackage{wasysym} \usepackage{multicol} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{graphicx} \usepackage{xcolor} %\usepackage{iwona} \usepackage{wrapfig} \input{FactorTree} \usepackage{pstricks} \usetikzlibrary{matrix} \usepackage{tkz-euclide} \usetkzobj[all] \usepackage{xlop} \usepackage{tcolorbox} \usepackage{pgfplots} \usepackage{pgf-pie} \usepackage[makeroom]{cancel} \input{longdiv} Change templates in Xcode How would I change the initial templates created by Xcode when creating a new Cocoa Class.  I am referring to the comments and class name created when using Xcode's new class wizard. What should a rational person accept as a miracle?