I was trying to get a program to work, and installed a different version of wine that overwrote the version of wine I already had. (That version ended up not working) So I tried installing the default version of wine i already had, and it tells me to use sudo apt-get -f install because some wine packages are missing their dependencies, but when I run -f install it won't work because it tries to remove the package "sudo"  You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies:  wine:i386 : Depends: wine1.6:i386 or                       wine1.8:i386 but it is not going to be installed  wine1.6-i386:i386 : Depends: wine1.6:any:i386 (= 1:1.6.2-0ubuntu4) E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). ryan@ryan-X551MA:~$   ryan@ryan-X551MA:~$ sudo apt-get -f install Reading package lists... Done Building dependency tree        Reading state information... Done Correcting dependencies... Done The following packages were automatically installed and are no longer required:   attr libacl1:i386 libaio1 libattr1:i386 libav-tools libavdevice53   libavfilter3 libavresample1 libboost-filesystem1.54.0 libboost-regex1.54.0   libbsd0:i386 libbz2-1.0:i386 libcap2:i386 libgksu2-0 libgtkglext1   libhdb9-heimdal libkdc2-heimdal libldb1:i386 libncursesw5:i386   libnss-winbind libntdb1:i386 libopencv-highgui2.4 libpam-winbind   libpopt0:i386 libpython-stdlib:i386 libpython2.7:i386   libpython2.7-minimal:i386 libpython2.7-stdlib:i386 libreadline6:i386   libtalloc2:i386 libtdb1:i386 libtevent0:i386 libwbclient0:i386 mkvtoolnix   ocl-icd-libopencl1 p7zip python-dnspython recordmydesktop samba   samba-dsdb-modules samba-vfs-modules simplescreenrecorder-lib tdb-tools   ttf-wqy-microhei winbind wine-gecko2.21 wine1.6-amd64 Use 'apt-get autoremove' to remove them. The following extra packages will be installed:   libaudit1:i386 libpam-modules:i386 libpam0g:i386 sudo:i386 unrar:i386   wine1.6:i386 wine1.6-amd64 winetricks:i386 Suggested packages:   libpam-doc:i386 dosbox:any:i386 Recommended packages:   winbind:i386 The following packages will be REMOVED:   sudo The following NEW packages will be installed:   libaudit1:i386 libpam-modules:i386 libpam0g:i386 sudo:i386 unrar:i386   wine1.6:i386 wine1.6-amd64 winetricks:i386 0 upgraded, 8 newly installed, 1 to remove and 36 not upgraded. Need to get 0 B/17.6 MB of archives. After this operation, 129 MB of additional disk space will be used. Do you want to continue? [Y/n] y   Preconfiguring packages ... (Reading database ... 201469 files and directories currently installed.) Removing sudo (1.8.9p5-1ubuntu1.2) ... You have asked that the sudo package be removed, but no root password has been set. Without sudo, you may not be able to gain administrative privileges.  If you would prefer to access the root account with su(1) or by logging in directly, you must set a root password with "sudo passwd".  If you have arranged other means to access the root account, and you are sure this is what you want, you may bypass this check by setting an environment variable  (export SUDO_FORCE_REMOVE=yes).  Refusing to remove sudo. dpkg: error processing package sudo (--remove):  subprocess installed pre-removal script returned error exit status 1 Errors were encountered while processing:  sudo E: Sub-process /usr/bin/dpkg returned an error code (1)
There are now errors when updating and I cannot install most software due to a corrupted  /etc/apt/sources.list   file. Is there a copy I can download to replace it?  The file would be for Ubuntu 12.04 (Final Beta) in the United States.
How would I remove the border from an iframe embedded in my web app? An example of the iframe is:  &lt;iframe src="myURL" width="300" height="300"&gt;Browser not compatible.&lt;/iframe&gt;   I would like the transition from the content on my page to the contents of the iframe to be seamless, assuming the background colors are consistent. The target browser is IE6 only and unfortunately solutions for others will not help. No human players, just AI and have the ability to scroll around and see what the AIs are doing with the turn management being also automated, so the AIs just end turn when they are done. Oh, and all of this hopefully without any sort of fog of war.  This way, I can see how the AI manages resources and units and maybe learn a thing or two as a civ newb. How can I compute $\mathrm{Aut}(\mathbb{Z}/4\mathbb{Z}\times\mathbb{Z}/6\mathbb{Z})$? How can I compute $\mathrm{Aut}(\mathbb{Z}/4\mathbb{Z}\times\mathbb{Z}/6\mathbb{Z})$?  If $\varphi$ is one of this automorphism then $\varphi((1,0))=(1,0),(1,3),(3,3),(3,0)$ and $\varphi((0,1))=(0,1),(0,5),(2,1),(2,5)$.  So it seems to me that this groups contains 16 elements, am i right? And if I'm right there is a way to understand to which group of cardinality 16 this is isomorphic to?  EDIT: $\mathbb{Z}/4\mathbb{Z}\times\mathbb{Z}/6\mathbb{Z}\cong\mathbb{Z}/8\mathbb{Z}\times\mathbb{Z}/3\mathbb{Z}$. And $\mathbb{Z}/8\mathbb{Z}$ and $\mathbb{Z}/3\mathbb{Z}$ are characteristic (am I right?), so $\mathrm{Aut}(\mathbb{Z}/8\mathbb{Z}\times\mathbb{Z}/3\mathbb{Z})\cong\mathrm{Aut}(\mathbb{Z}/8\mathbb{Z})\times\mathrm{Aut}(\mathbb{Z}/3\mathbb{Z})\cong\mathbb{Z}/8\mathbb{Z}^*\times\mathbb{Z}/3\mathbb{Z}^*$ and this group has cardinality 8, right? Where is my mistake? Direct Link to a Comment Are the contents of a loot box determined at the time it is awarded or when it is opened?  For example, if you collect multiple loot boxes before a special event but opened them during the special event, would they have the potential of spawning rewards from that event? I have some plasterboard screws like this:     However, without a drill I have a job getting them into the wall. Am I safe to use normal screws on hangings that aren't going to be taking a great deal of weight? In this case it is a rack of coat hooks. What is the mechanism by which magnetic fields do work? I've seen some conflicted answers to this question in texts and on the web, in the case of a dipole, for example.   Do magnetic fields do work directly, or is it their induced electric fields that do work? The sum is $$\sum_{n=1}^{\infty} \frac{n+2^n}{n+3^n}$$ Is this convergent or divergent? I tried to use the divergent test but the test fail because $a_n = (n+2^n)/(n+3^n) = 0 $ as $n$ goes to infinity. Could someone point me to the right direction?  Thanks Assigning strings to arrays of characters I am a little surprised by the following.  Example 1:  char s[100] = "abcd"; // declare and initialize - WORKS   Example 2:  char s[100]; // declare s = "hello"; // initalize - DOESN'T WORK ('lvalue required' error)   I'm wondering why the second approach doesn't work. It seems natural that it should (it works with other data types)? Could someone explain me the logic behind this? Probability of flipping coin What is the probability of obtaining THT before HHH when a toss is tossed sequentially? Could someone solve using state diagram and law of total probability? Is it appropriate to ask questions about software licenses/licensing on ? Or is the appropriate place  ? Or is there no appropriate site currently and we should suggest such a site on ? Flag indicator present on Meta, but no flags visible A word for "every two days" What is the adjective to describe someone who views or represents someone/something as a stereotype? What I want to know is whether there is an adjective within the same word family as "stereotype" for that.  So, if it exists, it would be something like "stereotypist" or "stereotyping".  I know that "stereotypist" exists as a noun and "stereotyping" exists as a present participle but I wonder whether either (or both) of them has/have also been used in literature as an adjective. How do I repair my weapons and armor? identity element of $(D_n ,\gcd)$ Mathoverflow - why so different Curious why  (se site) doesn't have hot questions list on the right.  It also uses the old stackoverflow design.  Why has this site's design and functionality been abandoned (or at least look abandoned?) which app triggers the "Windows features" dialog? I keep getting this window titles "Windows Features" It then says that:     An app on your PC needs the following Windows feature:      .NET Framework 3.5 (Includes .NET 2.0 and 3.0)   and I can choose to install or skip (being warned that my apps might not work correctly).  There is also a "telll me more about this feature" link but it explains about the .NET framework.  I want to know if there is a way for me to know which application is it that asks for this feature as the window just keeps popping out of the context of activating a new app...  This all started just a few days ago after some unattended update on my windows 10. Are dark energy and zero-point energy the same thing? According to Quantum Mechanics is it possible that the famous  and  are the same thing that drives the accelerated expansion of the universe or maybe related to each other? Why do "df" and "du" commands show different disk usage? I cannot access ubuntu system on my pc, the error message: "the system is running in low graphics mode" and I tried some commands I searched from internet.   I found out a problems seems there is no available disk space. I used "df" and "du" commands to check, the results are as follow:  du -j --max-depth=1 23G  ./home 3.3G ./usr  ......  28G   and  df -Th  filesystem   Type   size    used   available   use%    mounted on  /dev/sda5    ext4   68G     68G    0           100%    /   how would I clean up the system for more disk space?