Problem with window drop shadow on Unity after system wakeup I had this problem once before in a previous version (don't remember which) and it is back again. To create this, all I have to do is suspend my laptop and bring it back up again. At this point once I login back, the drop shadow on all the windows become messed up (see image). The corners (of the drop shadow) have some pink static noise and the borders form random lines.  This happens on all the application windows. If I reboot the laptop the problem goes away and promptly appears the next time I suspend/resume. This is same fate for newly opened windows.  Ubuntu 16.04, Unity, Ambiance theme, GeForce GT 630M using Nvidia driver v375.39  Looking around for anyone having a similar problem I saw suggestions for dealing with problems with the drop shadow using CCSM (CompizConfig Settings Manager). The suggestion to 'override Theme Settings' in 'Ubuntu Unity Plugin' has not helped. However, there seems to be a temporary fix if I enable the setting and disable it. i.e. the messy drop shadow disappears (for newer windows too) but the 'close/minimize/restore' buttons become pink noise. Any suggestion on what I could do next to solve this would be helpful. I renamed the ~/.cache/conpizconfig-1 folder hoping some texture cache that might have messed up would clear up, but with no success.
Strange artifacts along window borders after waking computer from sleep mode NB: Nvidia has released an official fix; please see ,  and/or .  Upon waking up Ubuntu 16.04 from Suspend, the following graphical glitches appear around all windows, context menus, and similar:      This is currently known to affect the following NVIDIA cards running the proprietary drivers:  NVIDIA GeForce 610M, driver version 375.39, 340.102 NVIDIA GT 630M, driver version 375.39 NVIDIA GTX 650, driver version 375.39 NVIDIA GT 740M, driver version 378.13 NVIDIA GTX 745, unknown driver version NVIDIA GTX 850M, driver version 375.39, 378.13 NVIDIA GT 940M, driver version 375.39 NVIDIA GTX 950M, unknown driver version NVIDIA GTX 960M, driver version 378.13 NVIDIA GTX 970, driver version 375.39 NVIDIA GTX 970M, driver version 375.39 NVIDIA GTX 980 TI, unknown driver version NVIDIA GTX 1060, driver version 375.26, 375.39, 378.09 NVIDIA GTX 1070, driver version 378.09  The above above list has been sourced from reports from other users here on AU,  thread, and  thread. NB: This is be no means an exclusive list. It probably effects nearly all Nvidia cards.  Furthermore, this issue has been replicated on a clean install where the only change was a software update and the installation of the latest NVIDIA drivers.  What is going on, and how can it be resolved?
What is the lowest level of mathematics required in order to understand how encryption algorithms work? What mathematical fields of knowledge would be required in order to get a good understanding of encryption algorithms?   Is it basic algebra, or is there a "higher education" mathematical field dedicated to encryption? I know there is the cryptography field, but what is the subset of knowledge required for cryptographers? Page number in title page Verification the integral identity $\int_0^\pi \ln(1+\alpha\cos(x))dx=\pi\ln\left(\frac{1+\sqrt{1-\alpha^2}}{2}\right)$. I have to verify that     $$\int_0^\pi \ln(1+\alpha\cos(x))dx=\pi\ln\left(\frac{1+\sqrt{1-\alpha^2}}{2}\right)$$   with $|\alpha|&lt;1$. It is my homework and don't know where to begin. Why is AES considered to be secure? The security of RSA is based on the integer factorization problem, which is a very well defined and understood mathematical problem. This problem must be solved in order to fundamentally break RSA.   What about AES (and others based on the same idea)? Why is it difficult to break? Is there any mathematical principle that ensures its security? I want to use the GameJolt API, how do I protect my private key which is in my game? GameJolt is a gaming platform/website that offers API access with features like achievements tracking for users, etc. I can use the API no problem on my tests but what I'm concerned about is the private key that is issued to my game. How do I ensure that it's protected from people that want to decompile my game? Once  they get the API private key, they will be able to do anything with it. IEEE Template. \cline error in table. Extra alignment tab has been changed to \cr I had this table working with an IEEETemplate but now when I try to build it with an IET Template I get the error that you can see on the title .. could anybody help me?  Thank very much for your time.  \documentclass{cta-author}   \usepackage{graphicx} \usepackage{multirow} \usepackage{booktabs}  \begin{document}  \begin{table}[h!]     \centering   \renewcommand{\arraystretch}{1.2}   \begin{tabular}[b]{|p{1cm}|l|c|c|c|c|}     \hline     \multirow{2}{0.3cm}{\textbf{j}}&amp; \multicolumn{2}{c|}{\textbf{k}}  &amp; \multicolumn{2}{c|}{\textbf{l}}\\     \cline{2-5}     &amp; \textbf{f} &amp; \textbf{g} &amp; \textbf{h} &amp; \textbf{i}  \\ \hline        a  &amp; b  &amp; c &amp; d &amp; e \\ \hline     \end{tabular}     \caption{Example} \end{table}  \end{document} How can I redefine \int to put a negative space after the integral sign, but keep the limits properly set? I'd like to modify the \int command such that it adds an automatic negative space, e.g. \! after the integral sign. Preferentially, I'd like to be able to not edit any of my code, so cleverly redefining \int seems like my best option. Unfortunately, naive implementations get the limits wrong:  \documentclass{article} \usepackage[intlimits]{amsmath} \usepackage{ifthen}  \newcommand{\diff}[2][]{   \ifthenelse { \equal {#1} {} }   {\ensuremath{\mathop{\mathrm{d} #2}}}   {\ensuremath{\mathop{\mathrm{d}^#1 #2}}} }  \begin{document}  This is what I would want: \begin{equation}  \int_0^\infty \mspace{-4mu}\diff[3]{\boldsymbol r} f(\boldsymbol r), \end{equation} but with this ``user code", containing no negative spacing explicitly: \begin{verbatim}  \int_0^\infty \diff[3]{\boldsymbol r} f(\boldsymbol r), \end{verbatim} which for comparison with the above gives: \begin{equation} \int_0^\infty \diff[3]{\boldsymbol r} f(\boldsymbol r), \end{equation}  mostly because this gives me the option to remove it or change the spacing when I see fit. \end{document}   Which results in: 3D software like GeoGebra Does it exist a free interactive geometry software, like GeoGebra, which works for 3D geometry? I would be able to draw spheres, great circles, and so on. Center image element in parent div With Bash's source it is possible to execute a script without an execution bit set. This is documented and expected behaviour, but isn't this against the use of an execution bit?  I know, that source doesn't create a subshell. How to list only JPEG files from root below using the command line? Are there any universal rules in appropriating “_an,” “_sh,” “_es,” “_ch” for the demonyms of countries? Suffixes indicating people and language of country vary by country:  _an: American, German, Italian, Belgian, Australian, Russian, Ukrainian, Korean,  Mexican, Brazilian, Chilean, Argentinean, Indonesian, Malaysian, Iranian, Egyptian, Somalian, Palestinian  _sh: English, British, Polish, Danish, Swedish, Turkish,    _ch: French, Dutch  _ese: Chinese, Taiwanese, Japanese, Vietnamese, Portuguese  _no: Filipino, Latino  _i: Israeli  _: Thai  Among the above, _an seems to outnumber other suffixes.  Are there any simple rule to govern appropriation of suffix turning a country name into adjective, indicating people and language of countries in the world in terms of say, region, race, or cultural background? Or is it just discretional? What is the best way to close an ASPX page from the code-behind?    I have a button event handler that I want to close the page after the user has clicked an ASP.NET button on the page.  I have tried to programmatically add a JavaScript method that contains a window.close() command to the OnClientClick event to close the page but it does not work.  The button is also a asp:AsyncPostBoskTrigger for an AJAX Update Panel.  The application uses .NET Framework 3.5. Sequence of tenses for facts irrelevant of the moment of speech Let's consider two sentences:     (1) I suggested that the word zeitgeist was of German origin.   (2) The lecturer said the Pluto's orbital period is more than 200 years.   In both cases, the facts are always valid and  irrelevant of the moment of speech and context. I've heard sequence of tenses is not required in such cases. Are past and present tenses interchangeable in both of them? Would it be correct to say:     (1) I suggested that the word zeitgeist is of German origin.   (2) The lecturer said the Pluto's orbital period was more than 200 years. I'm new to Linux and Ubuntu. People keep using ~/filename in their answers to my questions. What does ~/ mean? PhD thesis without acknowledgements During the process of writing my PhD thesis, I was close to falling out with my adviser, the advice I received from other staff at the lab (including the director) was unhelpful at best. I have since made up with my adviser and have successfully defended the thesis. I now have to publish my thesis.  The department says that one can include acknowledgements. All of the theses I have seen in my lab and in my department feature acknowledgements. Due to this special situation,  I don't quite feel that acknowledgements are called for. Yes, my adviser helped during the first half of the project but then almost completely reverted his stance. In terms of contribution, it is my opinion that he comes out at 0%.  I do not want to address any of the issues in the acknowledgements. I do not think that this is the right place. Likewise, I do not feel like thanking any of the involved people. Therefore, I would just leave out the acknowledgements completely. In academia, is this considered worse than lukewarm acknowledgements? Should I actually care about the acknowledgement, because others do? I have the following query that sort of works, but I find it to be kludgy and inefficient.  Is there a better way to write this query?  I know this is a bit of an odd query, else I would probably have found some advice when searching, but it is necessary for our business logic.  We've been doing this in Hibernate queries and using software to output the file but we're needing to improve performance drastically and that means using raw sql.  The output of this query is to be used to partially populate a helper table that we query to figure out which of our 40-odd product tables a particular item is contained in.  Could the following query be replicated using something like GROUP_CONCAT in reverse? Note that the second and third column must be repeated on each line.  The fields all contain the same type of data.  SELECT 'Pn', 'Mfg', 'TableId', 'SourceColumn', 'OtherData' SELECT PN1, Mfg, '26', 'PN1', OtherData FROM Table  UNION ALL SELECT PN2, Mfg, '26', 'PN2', OtherData FROM Table UNION ALL SELECT PN3, Mfg, '26', 'PN3', OtherData FROM Table UNION ALL SELECT PN4, Mfg, '26', 'PN4', OtherData  INTO OUTFILE 'XXX.dat' FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' ESCAPED BY '\\' LINES TERMINATED BY '\n' FROM Table d;   Input looks like the following table:       |  PN1  |  PN2  |  PN3    |  PN4    |  MFG  |  TableId  |  OtherData  |     -----------------------------------------------------------------------     |  asdf |  abde |  12354  |  asdfc  |  2    |  26       |  0.2456     |     |  nupo |  1354 |  null   |  null   |  2    |  26       |  1.53       |     |  ...  |  ...  |  ...    |  ...    |  ...  |  ...      |  ...        |     |  ...  |  ...  |  ...    |  ...    |  ...  |  ...      |  ...        |     |  ...  |  ...  |  ...    |  ...    |  ...  |  ...      |  ...        |   I want the output .dat file to look like this:       "Pn","Mfg","TableId","SourceColumn","OtherData"     "asdf",2,26,"PN1",0.2456     "abde",2,26,"PN2",0.2456     "12354",2,26,"PN3",0.2456     "asdfc",2,26,"PN4",0.2456     "nupo",2,26,"PN1",1.53     "1354",2,26,"PN2",1.53     ...     ...     ...   If I take the INTO OUTFILE clause out, I get an output that looks like this:       |  Pn      |  Mfg     |  TableId    |  SourceColumn  | OtherData  |     -----------------------------------------------------------------     |  "Pn"    |  {blob}  |  "TableId"  |  "PN"          |  {blob}    |     |  "asdf"  |  {blob}  |  "PN1"      |  "PN1"         |  {blob}    |     |  "abde"  |  {blob}  |  "PN2"      |  "PN2"         |  {blob}    |     |  "12354" |  {blob}  |  "PN3"      |  "PN3"         |  {blob}    |     |  "asdfc" |  {blob}  |  "PN4"      |  "PN4"         |  {blob}    |     |  "nupo"  |  {blob}  |  "PN1"      |  "PN1"         |  {blob}    |     |  "1354"  |  {blob}  |  "PN2"      |  "PN2"         |  {blob}    |     |  ...     |  ...     |  ...        |   ...          |   ...      |     |  ...     |  ...     |  ...        |   ...          |   ...      |     |  ...     |  ...     |  ...        |   ...          |   ...      | A regular function can contain a call to itself in its definition, no problem.  I can't figure out how to do it with a lambda function though for the simple reason that the lambda function has no name to refer back to.  Is there a way to do it?  How? Harmonic Motion Scale camera to fit screen size unity My background and gameobjects are 2d sprites not UI images ,I want to know how to make my background scale with screen size and positions of 2d sprits on it don't change after building game (webGl) like scale canvas with screen size and anchor points in UI elements .  Before building the game   After building