Question:  How to install gnome extension "workspace matrix" on Ubuntu 18.04 LTS?  Problem:  Unable to install "workspace matrix"  (or "workspace grid") on Ubuntu 18.04.  No packages appear in Ubuntu Software app when I search on "workspace matrix"  Background:  Recently managed to get my laptop dualbooted again with Ubuntu.  I successfully re-enabled grub2 on my UEFI GPT configured laptop (a Dell m5510) using an NVMe SSD.  After a couple days of running the older 16.04 LTS, I decided to update to 18.04 LTS.  So far, so good.  Welcome back to gnome, goodbye Unity (whatever).  Discovered Gnome 3's "dynamic workspace" feature, but wanted 2x2 static.  Switched to static, discovered columnar only order.  Searched Google... discovered "workspace grid" (deprecated), recommended solution "workspace matrix".  Following several web pages, they all simply said "install "workspace matrix" via Ubuntu Software app.  No such luck.  "aptitude install" and "aptitude search" not revealing.  Do I need to add a repository to be able to add "workspace matrix" on 18.04 LTS?  IF SO, which one?  I'd prefer a recommended and/or stable PPA, to avoid playing musical repositories in the future, if possible.  TIA.
How do I install GNOME Shell extensions?  Is it possible to update, remove and manage the extensions?
One way function existence Let $x = (x_1, x_2,...,x_n)\in\{0,1\}^n$ for $n\in\mathbb{N}$. Prove that if one-way functions (OWFs) exist, then there exists a one-way function $f$ such that for every bit $i\in[1,n]$ there exists an algorithm $A_i$ such that: $$\Pr[A_i(f(x)) = x_i] \geq \frac{1}{2} + \frac{1}{2n}$$ I'm having trouble understanding this. Modifying Score text in Locate Widget of Flexviewer 2.4? I want to add text where it says "score" to make it more clear that this is an address matching score.    I am using the LocateWidget_US.xml and do not think I can do it here.  I think the place to do it may be in the LocateWidget.mxml in this line????   locateResult.content = getDefaultString("resultScoreText") + " " +   (addrCandidate.score % 1 == 0 ? addrCandidate.score : addrCandidate.score.toFixed(1)); ArcGIS Python Tool - Importing Custom Script Into ToolValidator Class In this MWE, I want to obtain bold letter for the letter "H" (compare the two "H") :  \documentclass[10 pt]{beamer} \usetheme{default} \usepackage{lmodern} % load a font with all the characters \usepackage{fontspec} \usepackage{cmbright} \SetSymbolFont{largesymbols}{normal}{OMX}{iwona}{m}{n} \usepackage{amsmath}%loads amsmath that should go before unicode-math \usefonttheme{professionalfonts} \defaultfontfeatures{Mapping=tex-text}  % This seems to be important for mapping glyphs properly  \begin{document} \begin{frame} \[ \mbox{First bold H : }\|x\|_{\mathbf{H}},\; \mbox{Second bold H : }\mathbf{H}  \] \end{frame} \end{document}   but I don't know how doing it. THe "H" produced by this MWE is tiny but no bold effect. If I use      \SetSymbolFont{largesymbols}{normal}{OMX}{iwona}{m}{n}   I obtain bold tiny "H" but the font used still not the same. C++11 does not deduce type when std::function or lambda functions are involved finding $\int_0^\infty \dfrac{dx}{1+x^4}$ through complex analysis I'm struggling to understand the difference between the standard error and the standard deviation. How are they different and why do you need to measure the standard error? How to differ sessions in browser-tabs? Proof of for-all / there-exists "negation"? The Civilization series of games is famous for having a way to play by e-mail. This allows people to take a long time on their turn without holding up the other players, as you do in a real-time game. Yet, I can not find any method to play by e-mail in the game menus. Does it exist? If so, how do you do it? Why doesn't `sudo cd /var/named` work? At the start of A New Hope, when the corvette is being attacked, C3PO says something to the effect of:     There'll be no escape for the princess this time.   But when Luke stumbles onto Leia's message in R2D2, C3PO seems to not know who the figure in the message is:     I'm afraid I'm not quite sure, sir. I think she was a passenger on our last voyage. A person of some importance, sir - I believe.   Is C3PO feigning ignorance to protect her, or does he really not recognize her? How might I describe washed up stuff in a word or phrase?  Asking for my granddaughter. She knows about "jetsam" but that's for things deliberately jettisoned:     unwanted material or goods that have been thrown overboard from a ship   and washed ashore, especially material that has been discarded to   lighten the vessel -    so does not fit in her story.  Neither does "flotsam", which is wreckage, though not deliberately discarded. And the "flot" says it's floating, not washed up.     the part of the wreckage of a ship and its cargo found floating on the   water. - How can you get the "real" HttpContext within an ASP.NET MVC application? How to add a program as a startup application from a terminal? I am using Ubuntu 12.04 and I know the GUI way to maintain the startup program list but now I want to find out the way to add/remove startup applications using a command line interface (CLI). This doesn't work:  tar xf /tmp/foo.tar.gz foo/bar tar: foo/bar: Not found in archive   It's not obvious to me what would do this beyond extracting it in place and moving the files over. Why don't I get a link error when I provide my own malloc and free? Integrable function whose Fourier transform is not integrable Shower at Heathrow during layover in Terminal 5 Reading the  questions here, I am not too hopeful, but this is the perfect site to find the answer if it does exist:  Facts:   I arrive at T5 (British Airways) at 08:30, depart at 11:40 from T5 (British Airways) to another country. No time once I reach final destination to shower, Leave straight from work to catch the first leg. US citizen + passport, only final destination visa (currently)   Desire:  I want to shower - 10 mins is plenty.  Assume money is no object (pay for lounge access, cabs etc), but I'd rather not buy full ticket if I can avoid it.  P.S. It's a wedding, so I REALLY want to shower before haha.  EDIT: My plan so far (which doesn't work because it's after Security):   Travel from  Use    UPDATE:  I followed G &amp; Doc's advice and walked over to the Sofitel Hotel (Immigration + walk ~20-25 min total) showered there for £25 and walked back through Security with plenty of time to spare.  Thank you all for your help! Symmetric Inequality in $\mathbb{R}$