how can i completely remove gnome3 from ubuntu 20.04 without affecting KDE Plasma
How to remove GNOME Shell from Ubuntu 20.04 LTS to install other desktop environment from scratch?
Continuous injective map is strictly monotonic Allow an edit to notify downvoters: "I think I've fixed the issue now - please check" To me, a downvote usually indicates a problem with an answer. When I downvote it's to mark the answer as having a problem, not the person. If the answer is fixed, I want to remove that downvote - but it's tricky to keep track of all the questions I've looked at over the last few hours.  I don't actually downvote very much, but it's very easy to forget what's going on.  It would be nice to have some way of indicating in an edit that you (the editor/answerer) believe the reason for the downvote has now been resolved, so that the downvoters could come and undo their downvotes or explain why it's still not fixed.  (Note: this isn't about rep-recovery, but quality control. I would feel a lot better about downvoting on "iffy" answers if I felt it was likely that the answer would be fixed and I could undo the vote. Whether or not I'd get back the cost of the downvote is somewhat immaterial.) I just saw Death in Paradise Season 5 Episode 3, which features a photographer using a DSLR to shoot a fashion runway performance.  He had a flash that was a ring around the lens.   I thought that was for macro shots only, where the extreme close-up has trouble with normal flash placement.  For normal photos you want the flash far from the lens, like on a boom on a separate handle framing the camera.  I've seen some recent trendiness in having ring-shaped catch lights, but I supposed those would be positioned in the normal manner: off-angle from the lens.  I suppose if an on-camera had any effect at all it would be for some subtle fill flash.  Is this a realistic thing to see from a pro? Or is it just a cool-looking prop that doesn't really fit the situation? The origin of the value of speed of light in vacuum How to make a Snap application (ksnip) appear in "open with other application" context menu? For editing screengrabs, I prefer to use , since  was no longer installable without hassles on Ubuntu 18.04 and 20.04 However ksnip is available as a Snap App on my 20.04 ○ → snap list | grep ksnip ksnip                    1.8.0                       265    latest/stable    dporobic                 Unfortunately I have to start ksnip from the command line, then use the File-Open Dialog to pick a screengrab/PNG, then edit it in ksnip. This is should be easier. What I want is to use Nautilus File manager, then select the &quot;Open with other Application&quot; context menu item to select ksnip, and the have ksnip open the file I picked with nautilus. Nautilus Context Menu, selecting a PNG:  &quot;Select Application&quot; Dialog:  How can I achieve this? There is a &quot;View all Applications&quot; Button, but after clicking, ksnip does NOT appear in this list of apps. &quot;Find new applications&quot; does not work either. Maybe this is a duplicate, but I think we did not have the combination yet (Hack the dialog and Snap App)  (Note to self: maybe Shutter is usable again. Development had stalled for a while, or it needed a lot of deprecated versions of gnome libs as dependencies) . Is there a place to dispute duplicate markings? How did a new question with a title shorter than 15 characters come to exist? How do I interpret the results of a regression which involves interaction terms? If I have a linear regression of the form:  $$y \sim 1+\beta_1x_1 + \beta_2x_1x_2,$$  where $x_2$ is a Boolean variable depending on another variable $x_{2cont}$, a positive variable:  $$x_2 = \begin{cases} 1 &amp; \mbox{if } x_{2cont} &gt; 5 \\ 0 &amp; \mbox{if } 0 &lt; x_{2cont} \le 5. \end{cases}$$  And I got regression results. How shall I interpret the regression results?  esp. how shall I interpret the two coefficients I get from this regression,  $\beta_1 \text{ and } \beta_2$? I am using 64bit 2.10.1-Pisa on Windows 10.  When I set up my composer to print, everything looks fine until I try to print or export. The composer goes completely blank and outputs a corrupted PDF using the Export to PDF function. The PDF file won't even open.  I had the same result exporting to PNG.  When I try to use the PDF document printer instead of exporting, QGIS stops responding indefinitely. Is there any way I can specify a standard or custom numeric format string to always output the sign, be it +ve or -ve (although what it should do for zero, I'm not sure!) Windows Update not working on Windows 2012 R2 Standard I recently inherited the management of a Windows 2012 server at a remote site.    I checked Windows Update and it has not been updating since March.  When I tell Windows to check for updates, it acts like it is checking, but it seems to say that for hours.   If I attempt to restart the windows update service, it seems to never be able to shut down.  My only remedy seems to be rebooting to get back to the point where I can tell Windows Update to check for new updates.    The last successful check for updates says March 20.  The last time updates were installed says March 17 (failed).  The update history shows that one update failed for March 17, a printer driver update, but the history shows 13 failed updates for Feb 17.  Not sure what else to try. Does the artificer's Enhanced Weapon stack on top of hexblade's Improved Pact Blade? I play a hexblade warlock with an Improved Pact Blade longsword. I like the idea of the eldritch tinkerer, who builds his patron's gifts into his gadgets, which fits in a warlock/artificer multiclass. The artificer's Enhanced Weapon infusion would be very nice with the warlock if it stacks with the Improved Pact Blade bonuses, but I can't tell if it does from the class descriptions. Do these features stack, or do I need to rethink this build? I notice that modern C and C++ code seems to use size_t instead of int/unsigned int pretty much everywhere - from parameters for C string functions to the STL.  I am curious as to the reason for this and the benefits it brings. Natbib -- change author conjunction in citation call-out from 'and' to '&' I'm using natbib, german babel and natbib creates output of the form   Foo and Bar (1337)   I would like to get   Foo &amp; Bar (1337) for citet and (Foo &amp; Bar 1337) respectively for citep. Let $M$ be a smooth manifold and let $N$ be a manifold with boundary. If $dF_{p}$ is an isomorphism, then $F\left(p\right)\in\mbox{int}M $. Wrap text around wide figure in two column I need to insert a figure into a two column document such that the figure partially spans both columns, and the text wraps around it.  It seems wrapfig does not work for this in two column, pullquote does not seem to either be exactly what I need.  I've tried using minipage with no luck. I tried to post an example of what I need to accomplish but since I am new this forum I cannot.  I'd be happy to send an image if this helps.   Any suggestions would be fantastically helpful! \texttt overfull hbox problem I asked a question earlier about \verb and overfull hbox :   And regarding the solution there, changed many of my \verbs to \texttt{}s.  I have come up with a new problem now.  An example:  \documentclass {article} \begin{document} \section {Introduction}      The entry point is in \texttt{TRCS.Main()} (\texttt{TRCS\char`\\TRCS.cs}).    The stateless (see \S 3.4.3) forms are started immediately, then another controller   is invoked, namely  \texttt{Workflow}. \end{document}   Compiling this example will show my problem.  \texttt{Workflow} causes an overflow, and a rather significant one.  What should I do to alleviate the problem?  Thanks in advance for your help! fontenc vs inputenc Where to find or how to make a frame like  below picture with optional width and height? Can two different planes share the same flight number?