I have installed Dash to dock from Ubuntu software. Every ok, but when I turn on computer, or when restart I have two dock when I go to Show Application?  I was disable ubuntu dock from extention.   I just have read  but it not solve my problem.  Edit:  is solved my problem.
What's going on here? I've installed the  on Ubuntu 17.10. Everything was cool, and as I was trying to hone and tweak the look of my desktop, at some point the shortcuts bar (dock?) on the left is duplicated.  (Click image to enlarge) The default, which normally disappears with Dash to Dock, is there underneath the one that usually shows up when I install Dash to Dock. Why? I've tried to go through the options for Dash to Dock, the GNOME Tweak Tool, and the regular Ubuntu settings, but I can't figure it out.
What would Voldemort have done had he won? This might sound like speculation, but can it be reliably predicted from canon what Voldemort would have done after he won, were he successful in defeating Harry and the Order?  Would he just rule over the wizard world and keep up the masquerade, or would he try to take over the whole Earth by starting a (dark-)wizard vs. muggle war? Drag-and-drop functionality no longer working after upgrade to 19.04 After upgrading from 18.04 to 19.04 (with a necessary upgrade to 18.10 between) on a Lenovo Yoga 11e, I can no longer drag and drop anything (ie, files, windows, etc.) with the touchpad.  I can, however, move things around using the touchscreen.  Whenever I attempt to do so with the mouse, though, sometimes it turns into a hand.  Whether or not it turns into the hand or remains a pointer, the icon will not move anymore.  IOW, as soon as I left-click, the pointer freezes in place until I release the touchpad. The SourceForge signon page says I can associate an OpenID with my existing SourceForge account:    I enter my currently-signed-in SourceForge account password I select the custom OpenID URL and enter https://openid.stackexchange.com I'm redirected to https://openid.stackexchange.com/account/login?&lt;session key bits&gt; I enter my openid.stackexchange.com login information there I get the error message:     Cannot Complete Login      Detected an attempt to send an assertion when the identifier () is not owned by the logged in user.    I don't understand what that means. Interior product (contraction) symbol See the above excerpt from John Lee's Introduction to Smooth Manifolds. In differential topology and linear algebra, there's an operator called the interior product or contraction operator, denoted $\iota_X(\omega)$ or alternatively with some other "half box" like operator $X_|\omega$. Does anyone know how to markup that operator in LaTeX?   Google has turned up nothing except for this thread:   That thread did receive an accepted answer, which was \invneg from the MnSymbol package, but the suggestion given there does not seem correct to me. Or at least, it does not match what I'm familiar with. That answer results in an inverted negation symbol, whereas the contraction operator should have a stroke down at the floor of the line, and a long stroke going up almost the full height of the line. It can be found in many texts, but why can I not find the correct LaTeX markup? How to automatically hyphenate within \texttt? This question was phrased as a bug report for LaTeX and I thought it would be helpful to be presented here (including an answer).  The person had a lot of "common words" in typewriter font sprinkled around his text and he was surprised that this text would not automatically hyphenate and he had to manually insert \- to mark hypenation points. Simplest Light triggered relay I am building a large array of Light Switched relays, and due to the size of the array i want to keep the part count down.  Each 'Pixel module' has a 12V SPDT, bulb and an activate-on-dark circuit. There is a strong spotlight on the device and the viewers shadow is obscuring the light in their shadow so the swing is large.  I have seen the obvious LDR-and-Pot circuits with a junction out to a NPN Transistor, and the more stable comparator alternative  I was looking at "solar cell" types of Photodiodes (PiN Type), and I can't see why I cannot just lay one across a PNP transistor (Collector to Base?) or something so it applies a Base voltage when lit up.  Can someone briefly explain to me why I am wrong?  I figure it would be all over the net if it was that easy, and i cant find any examples!  Is this possibly the cheapest way to make a light switched 12V relay driver?  Note: I prefer solutions using discrete circuitry, as I have a thing for human readability, visual components etc :P How do I create a line graph which ignores zero values? I want to create a graph showing trends over time, calculated from a formula of various data.  However, some data is missing, resulting in zeroes in the calculated data which the chart uses.  When plotting this data against as a line graph, it's drawing a line down to the axis, which I don't want.  I'd like either a gap in the line, or skip the data point and draw from directly previous to next.  i.e. given this data:  00.0    61.6    39.5    74.6    86.8    72.0    66.5    99.5    85.6    80.6    95.0    122.4 81.0    83.1    88.2    00.0    94.3    60.5    00.0    99.5    95.8    86.2    00.0    111.4 84.1    110.8   78.9    62.0    75.9    102.2   89.9    87.1    81.6    73.5    00.0    116.9   All the 00.0 items mean "no data", so I'd like them ignored (not treated as 0 value).   This is the chart I currently have:   This is how I'd like the chart to come out:   Again, I don't mind if the dotted lines are blank or solid, so long as they don't go down to zero.  The data is dynamic/calculated, so I can't just say =AVERAGE(prev,next) since I don't know where missing data will occur in advance - I need a solution which takes this into account.  Any ideas? Anonymous user feedback now in testing Anonymous and unregistered users with &lt; 15 reputation (the amount required to earn the upvote privilege) will now see       feedback   on every post in the area that a logged in user would see "add comment":    When the post area is moused over, the area expands to:     Was this post useful to you? [Yes] [No]     once clicked it will say     sending feedback...   and eventually     Thank you for your feedback.   The goal is to offer the 90% of our traffic that is anonymous users a way to provide more meaningful feedback on posts rather than passively incrementing a view counter.  This click data is currently being evaluated to see what we can do with it. Ideas welcome! The default in lyx is to have   I. First part (roman number)   Section 1   1.1 Subsection 1  and I'd like to have   First part (arabic number)   1.1 Section 1  1.1.1 Subsection 1  etc.   Any suggestion? Thanks a lot in advance! Spheres with csv file The more I use Stack Exchange, the more it is getting a knowledge-base for me. All questions, that I need for later reference I mark as favorite. Now I need to store these pages locally on my laptop. It is really time-consuming:  I could use Ctrl+S on each favorite question page  on Linux: there could be a solution with wget -N -r -l 1 &quot;https://stackoverflow.com/users/1069083/rubo77?tab=favorites&quot;  this will download all favorite questions but it creates no correct index.html Another approach would be to use the  to automatically follow into all your Stack Exchange-accounts. But that would have to be somehow limited to only favorites links on your  in each stack. cross-platform: You would need a firefox-plugin that downloads links recursively but only within the favorite-area of the  in your stack  Additionally, I would like to  and What does f-stop mean? What does f-stop mean? Is it the same thing when people say "2 stops" for example? Colors from a computer vs. colors from visible spectrum of sunlight Observation:  So, I know that all computer screens are able to project many different colors by varying how they display the RGB (Red, Green, Blue) pixels.  Question  What's the difference between say, yellow light (575 nm) from sunlight vs. the same yellow light that's displayed on the computer screen? Aren't they different? Is our brains mixing together the RGB lights together and its being interpreted as yellow light or is yellow light the same (575 nm) light that comes from sunlight actually hits our eyes?  Relationship between Fourier Series and light?  1) So I know that in Fourier Series, you have basis functions, sines and cosines that make up any other function depending on the coefficients that are in front of the sines and cosines terms.  2) I know that RGB colors on a screen are the "basis" for all the other colors that a computer screen makes up and the intensity of each of the RGB are like the "coefficients". So, am I making the correct relationship here? Online calculators such as  (view page source) use the below formulas to get meters per degree. I understand in general how distance per degree varies depending on latitude location, but I do not understand how that translates to the below. More specifically, where do the constants, the 3 "cos" terms in each formula, and coefficients (2, 4, 6; 3, and 5) for "lat" come from?      // Set up "Constants"     m1 = 111132.92;     // latitude calculation term 1     m2 = -559.82;       // latitude calculation term 2     m3 = 1.175;         // latitude calculation term 3     m4 = -0.0023;       // latitude calculation term 4     p1 = 111412.84;     // longitude calculation term 1     p2 = -93.5;         // longitude calculation term 2     p3 = 0.118;         // longitude calculation term 3      // Calculate the length of a degree of latitude and longitude in meters     latlen = m1 + (m2 * Math.cos(2 * lat)) + (m3 * Math.cos(4 * lat)) +             (m4 * Math.cos(6 * lat));     longlen = (p1 * Math.cos(lat)) + (p2 * Math.cos(3 * lat)) +                 (p3 * Math.cos(5 * lat)); Linked server returned message "Query timeout expired." We have two separate SQL Servers. On one server we have a data warehouse (DWH), on the other we have sales information database.  Now on the DWH server there is an ETL job that collects the information from the sales server. The job runs daily after midnight. The DWH collects the information via linked server from the sales database.  Now, the most time the ETL job runs without any problems. But sometimes it fails because of query timeout. We have found out, that there is a specific pattern: The failure happens every 11th day. So on the 11th day the ETL job fails to collect information.   The following error occurs:     SQLNCLI11 for linked server “my linked server” returned message “Query timeout expired.”   Note: The job fails usually 10 minutes after start.  We have searched everything and could not found out what this issue causes. Also we know that the amount of data is every time, almost the same. Also there is no any scheduled job that runs all 11 days or something.  The remote query timeout on the linked server is set to 0.  Our next step will be, to turn off the antivirus programm on the sales server, to check if this causes the problem.  Does anyone have any clue or idea, where i can search further to find the problem? Compute $\Gamma(2.7)$ All I know of the Gamma function is $$\Gamma(\alpha) = \int\limits_{0}^{\infty}x^{\alpha - 1}e^{-x}\text{ d}x$$ and the recursive formula $$\Gamma(\alpha) = (\alpha-1)\Gamma(\alpha - 1)\text{.}$$ A friend asked me to try to find $\Gamma(2.7)$. I assume this involves complex analysis, which I have absolutely no background on (except for the basic Euler formula). Using Wolfram, I found that  $$\Gamma(2.7) = e^{0.434821}$$ which suggests to me perhaps writing out $e^{-x}$ as a Taylor series: $$\Gamma(\alpha) = \int\limits_{0}^{\infty}x^{\alpha - 1}\sum\limits_{i=1}^{\infty}\dfrac{(-x)^{i}}{i!}\text{ d}x$$ but alas, this doesn't look helpful.  How does one derive that $\Gamma(2.7) = e^{0.434821}$? I am getting my feet wet with Git and have the following issue:  My project source tree:  / | +--src/ +----refs/ +----... | +--vendor/ +----...   I have code (currently MEF) in my vendor branch that I will compile there and then move the references into /src/refs which is where the project picks them up from.  My issue is that I have my .gitignore set to ignore *.dll and *.pdb.  I can do a git add -f bar.dll to force the addition of the ignored file which is ok, the problem is I can not figure out to list what files exist that are ignored.  I want to list the ignored files to make sure that I don't forget to add them.  I have read the man page on git ls-files and can not make it work. It seems to me that git ls-files --exclude-standard -i should do what I want.  What am I missing? A book in which every species on earth was rendered intelligent The 'blurb' on the back of the book was that something had boosted the intelligence of every creature on earth, to the point that at least some animals were on par with humans. I'm not sure if humans were similarly enhanced or just animals. I'm not sure whether it was done by aliens, or a side effect of something humans did, or what.   This book was on the shelves in the mid/late 1980's, so it's nothing more recent than that. Formula Assistance I am creating a formula variable in a Flow but keep getting this error. Crop net Acres is a Number field. IF(     ISBLANK( [Opportunity].Crop_Net_Acres__c),     0,      ( [Opportunity].Crop_Net_Acres__c) )  Error Message:  netAcresFormula (Formula) - The formula expression is invalid: Syntax error. Missing '='  Any thoughts here? For a given ellipse, find the locus of all points P for which the two tangents are perpendicular.   I have a trigonometric proof that the locus is a circle, but I'd like a pure (synthetic) geometry proof.