I'm trying to write this in latex: Does anyone know how to write this? (Thanks in advance)
I know what my symbol or character looks like, but I don't know what the command is or which math alphabet it came from. How do I go about finding this out?
In Microsoft Word, the following sentence is flagged.  It tells me to use "was" instead of "were"     There were half a dozen books strewn about the floor.   I would think that you would use "were" since it's a quantity more than one.  You wouldn't say, "There was twelve books strewn about the floor."  Does the use of the "half" modify it somehow? If I'm playing the Hilltop farm in co-op - what farmer's mining level is used for the hilltop spawns? Default route lost on reboot Movie/TV series with a scene of spiky, black goo growing out of a lab container? There was a scene from a sci-fi horror video, not animated, don't know if it's a movie or TV series, where there was this black goo in a glass container and some scientists were looking at it under a microscope.   The pitch black goo grew and grew so fast, eventually breaking out of the inner box and the scientists that were inside the "inner lab" were begging to get out but the scientists outside that inner lab refused to open the door. The black goo was spiky (had spikes).  It's not any of the "Alien" movies, "The Blob", "Life", or "The Thing". It's not vintage. It was made after 1990, I'm pretty sure. Why does time change in Ubuntu after installing Windows Today I was installing Windows 7 on the same computer I have Ubuntu. For some reason, after installing Windows 7 and going back to Ubuntu the time went from the correct hour at that moment, 12:30PM to 7:30AM. This happened after installing Windows 7. For what I understand the BIOS has a time set, Ubuntu has the same time that is shown in the BIOS when installing it. At least up to this point is what I have seen. Now after installing Windows 7 (And believe me this is only for testing the performance of Windows 7 against Ubuntu in which case Windows 7 is falling behind a lot on the same hardware) the time changes in Ubuntu to the wrong one that is set in Windows 7.  I actually do not change the time in Windows 7 since this is one of the checks I am doing to see if the operating system can correctly grab the time. Windows 7 fails. Ubuntu does not BUT Windows 7 actually changes the time for Ubuntu if I boot with it afterwards.  So my question is, why/how does time change in Ubuntu after installing Windows.  NOTE - I have set Ubuntu time to "manual" instead of grabbing it from the Internet just to test out this. Where $\phi(n)$ is the Euler phi function, how do you find all $n$ such that $\phi(n)|n$? After Factory Reset, In order to use Play store and Gmail I want to setup Google account on Samsung GT-S6802. When I tries to setup Google Account, In-spite of right user-name and password, following window appearers:    When I open gmail form browser, I've mail from google subject:Sign-in attempt prevented and says:     Someone just tried to sign in to your Google Account hidden@gmail.com from an app that doesn't meet modern security standards.     When I review, it shows unknown device but on browser it detects my device.  So, How do I face this issue and setup google account? SElinux: allow httpd to connect to a specific port My system is running CentOS 6.4 with apache2.2.15. SElinux is enforcing and I'm trying to connect to a local instance of redis through my python/wsgi app. I get Error 13, Permission denied. I could fix this via the command:  setsebool -P httpd_can_network_connect  However, I don't exactly want httpd to be able to connect to all tcp ports. How can I specify which ports/networks httpd is allowed to connect to? If I could make a module to allow httpd to connect to port 6379 ( redis ) or any tcp on 127.0.0.1, that would be preferable. Not sure why my paranoia is so strong on this, but hey...  Anyone know? How to understand dot product is the angle's cosine? How can one see that a dot product gives the angle's cosine between two vectors. (assuming they are normalized)  Thinking about how to prove this in the most intuitive way resulted in proving a trigonometric identity: $\cos(a+b)=\cos(a)\cos(b)-\sin(a)\sin(b)$.  But even after proving this successfully, the connection between and cosine and dot product does not immediately stick out and instead I rely on remembering that this is valid while taking comfort in the fact that I've seen the proof in the past.  My questions are:   How do you see this connection? How do you extend the notion of dot product vs. angle to higher dimensions - 4 and higher? Can't run my hello world in C is piped ls the same as ls -1? ls returns output in several columns, whereas ls|cat returns byte-identical output with ls -1 for directories I've tried. Still I see ls -1 piped in answers, like ls -1|wc -l. Is there ever a reason to prefer ls -1? Why does ...|cat change the output of ls? prevent user creating a duplicate node title how to prevent user creating a duplicate node title for a content type?  I already try uniqueness module () but it's only list out the duplicate content title but not return any error message when user save the new content. Any suggestion module or code? :) Book about space alien cats I read a book when I was young, it was about space alien cats. I believe the title was Quzzles, but I really don't know. The book was stolen from me before I was finished. I don't know much else about it. public static map&lt;id,RecordType&gt; MapRecordtype = new Map&lt;id,RecordType&gt;([SELECT id, DeveloperName FROM RecordType where sobjecttype ='move__c' and                                         Developername in('Assignment','Draft','Domestic_Draft','LTST_Draft','MX_Domestic','MX_Domestic_draft','Termination','International_Relo','Localization','J1',                                        'Back_To_Back','Repatriation','PAM','US_Domestic_Relo','CHN_Domestic_Relo','CHN_Domestic_Draft')])   Can we write schema for above query? Determining if an arbitrary point lies inside a triangle defined by three points? Is there an algorithm available to determine if a point P lies inside a triangle ABC defined as three points A, B, and C? (The three line segments of the triangle can be determined as well as the centroid if they are needed.)  Grid space is defined as Screen Space, that is, 2D Cartesian with the Y-Axis flipped so "up" is negative y and the origin is the upper left corner. Explain why $E(X) = \int_0^\infty (1-F_X (t)) \, dt$ for every nonnegative random variable $X$ Finding matrix $B$ is not zero matrix where $AB= 0$ OpenGL GLX context is not using direct rendering, which may cause performance problems. (steam) AMD DRIVER When I start steam in a terminal, I get the following error messages   charlie@SteamMPL:~$ steam rm: no se puede borrar «/home/charlie/.steam/steam»: Es un directorio rm: no se puede borrar «/home/charlie/.steam/bin»: Es un directorio Running Steam on ubuntu 14.04 64-bit STEAM_RUNTIME is enabled automatically [2014-08-03 11:50:13] Startup - updater built Jul 15 2014 18:14:26 Installing breakpad exception handler for appid(steam)/version(1405474565_client) libGL error: failed to load driver: swrast Looks like steam didn't shutdown cleanly, scheduling immediate update check Installing breakpad exception handler for appid(steam)/version(1405474565_client) [2014-08-03 11:50:14] Checking for update on startup [2014-08-03 11:50:14] Buscando actualizaciones disponibles... Installing breakpad exception handler for appid(steam)/version(1405474565_client) [2014-08-03 11:50:14] Download skipped: /client/steam_client_ubuntu12 version 1405474565, installed version 1405474565 [2014-08-03 11:50:14] Nothing to do [2014-08-03 11:50:14] Verificando instalación... [2014-08-03 11:50:14] Performing checksum verification of executable files [2014-08-03 11:50:15] Verification complete Gtk-Message: Failed to load module "overlay-scrollbar" Gtk-Message: Failed to load module "unity-gtk-module" Installing breakpad exception handler for appid(steam)/version(1405474565_client) Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number [0803/115015:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation libGL error: failed to load driver: swrast Error: OpenGL GLX context is not using direct rendering, which may cause performance problems.   Hardware information:   CPU: AMD Athlon x4 760k  GPU: AMD Radeon R7 250 1 GB GDDR5 (Driver: Catalyst 14.4) RAM: 8 GB DDR3 1600   What can I do to circumvent this issue? Automatically logging into Windows XP I often see statements in discussions about web displayed image quality that go something like this: "I only upload pictures at 72 dpi and 1200 pixels on the long edge, so if someone copies and prints the image it won't look as good as if it were 300 dpi."  What? Have I missed something here?  Does an image edited and saved/exported with 1200x800 pixels at 300 ppi look any different online than the same image saved/exported with 1200x800 pixels at 72 ppi? Other than the metadata regarding ppi, is there any difference in the two images at all? If so, what is the difference? If I tell my printer to print the images at 4R (4X6 inches) will there be any difference at all in how the printer creates a print from the 1200x800 @ 300 dpi image versus the 1200x800 @ 72 dpi image?