I am creating a form with inputs type radio. I have retrieved the previous responses from the database and I put them in an array. And this is the result:  array(19) { ["1.1"]=&gt; int(5) ["1.2"]=&gt; int(2) ["1.3"]=&gt; int(5) ["1.4"]=&gt; int(2) ["1.5"]=&gt; int(2) ["1.6"]=&gt; int(4) ["1.7"]=&gt; int(1) ["1.8"]=&gt; int(3) ["1.9"]=&gt; int(5) ["2.1"]=&gt; int(5) ["2.2"]=&gt; int(3) ["2.3"]=&gt; int(1) ["2.4"]=&gt; int(4) ["2.5"]=&gt; int(2) ["3.1"]=&gt; int(5) ["3.2"]=&gt; int(5) ["3.3"]=&gt; int(4) ["3.4"]=&gt; int(3) ["4.1"]=&gt; int(4) }    I have got here the question number 1.1 and the value 5. That its perfect, but when I send the form, new results by POST, are changing from 1.1 to 1_1 and so on like this:  array(19) { ["1_1"]=&gt; string(1) "5" ["1_2"]=&gt; string(1) "2" ["1_3"]=&gt; string(1) "5" ["1_4"]=&gt; string(1) "2" ["1_5"]=&gt; string(1) "2" ["1_6"]=&gt; string(1) "4" ["1_7"]=&gt; string(1) "1" ["1_8"]=&gt; string(1) "3" ["1_9"]=&gt; string(1) "5" ["2_1"]=&gt; string(1) "5" ["2_2"]=&gt; string(1) "3" ["2_3"]=&gt; string(1) "1" ["2_4"]=&gt; string(1) "4" ["2_5"]=&gt; string(1) "2" ["3_1"]=&gt; string(1) "5" ["3_2"]=&gt; string(1) "5" ["3_3"]=&gt; string(1) "4" ["3_4"]=&gt; string(1) "3" ["4_1"]=&gt; string(1) "4" }    I am putting in the input, name="$variable", a variable that it gives me exactly the same 1.1, but I do not know what it's changing it it.  &lt;input type="radio" name="&lt;?php echo $que_code; ?&gt;" value="1"   In order to compare them I would like to change them back to 1.1, 1.2..and so on.
If I pass PHP variables with . in their names via $_GET PHP auto-replaces them with _ characters. For example:  &lt;?php echo "url is ".$_SERVER['REQUEST_URI']."&lt;p&gt;"; echo "x.y is ".$_GET['x.y'].".&lt;p&gt;"; echo "x_y is ".$_GET['x_y'].".&lt;p&gt;";   ... outputs the following:  url is /SpShipTool/php/testGetUrl.php?x.y=a.b x.y is . x_y is a.b.   ... my question is this: is there any way I can get this to stop? Cannot for the life of me figure out what I've done to deserve this  PHP version I'm running with is 5.2.4-2ubuntu5.3.
I have created a model which requires some faces to be dual sided.  I intend to import this model into Unity. Reading about this, it seems that the recommendation is to duplicate the polygons and then flip the normals.  What I have done so far is simply to duplicate the all of the relevant faces using Shift+D and then flip the normals. I don't like this method though as it hampers any future alterations to the model itself.  What is the best way of doing this? Assume I have many TeX files. For the sake of simplicity, also asssume they are in a single folder or directory.  I want to input all files from within my main LaTeX document. Actually I can create a list of those files using C# in advance.  To enrich my view about LaTeX or TeX, could you tell me whether or not this job can be done only by using pure TeX or LaTeX? Prove that $\lfloor\lfloor x/2 \rfloor / 2 \rfloor = \lfloor x/4 \rfloor$ I have a profile on AskUbuntu.com which is recognized on my StackEchange profile (). I have already asked and answered questions there. But even though I'm logged in stack exchange, Askubuntu does not see me as logged in. I have a long history of problems with that and though I have been able to access it up to end 2018, and I don't understand why it can't do it anymore. I have seen multiple questions about similar problems, but they all are older than 2018 and do not really helped me solve it. Amongst other, they proposed to log in with the same user and password, but using the same user and password on two different log in systems is a security hole. either your credential cookies are shared, or one should use different logging info. EDIT: it has been suggested to deactivate third party cookies blocking, but I do not want to ruin my browser's tracking protection. Under the  tag I have seen many questions on earth-616. Are there any other versions of earth as well? How do they differ from each other? Well, the original task was to figure out what the following expression evaluates to for any $n$.  $$\begin{pmatrix} 1 &amp; 1 \\ 0 &amp; 1\end{pmatrix}^{\large n}$$  By trying out different values of $n$, I found the pattern: $$\begin{pmatrix} 1 &amp; 1 \\ 0 &amp; 1\end{pmatrix}^{\large n} = \begin{pmatrix} 1 &amp; n \\ 0 &amp; 1\end{pmatrix}$$  But I have yet to figure out how to prove it algebraically.   Suggestions? need to move a domain controller, the first in the forest that holds all the fsmo roles, to another location in a clients building. it will require turning off this dc, call it dc1 for this question. i want to transfer the fsmo roles to a new domain controller call the new one dc2. dc2 is already on the network and has been promoted and made a domain controller, it's dns settings are set and it is also a global catalog (GC). the work is scheduled to be done after hours and i am also planning on moving the dhcp server to dc2.  i am looking for a best practices checklist of things to verify prior to moving fsmo roles and turning dc1 off? as far as i know there are no issues with replication between the dc's. my biggest worry is if i turn on dc1 after moving it and i have hardware issues or boot issues, i would rather move the fsmo roles to a known good one that is a few months old (dc2) vs still using a 5yr old box (dc1), this is part of my migration strategy too.   thanks for the help. I have a laptop that has Windows 8 which I use for playing Minecraft. However when using the inventory, I have to hold my mouse to drag and pick the items and I don't like that.   I have tried switching mouses but that didn't work, is this possible to fix? Integrate $$\displaystyle \int_{0}^{\pi}{\frac{x\cos{x}}{1+\sin^{2}{x}}dx}$$ What kind of ring $R$ makes $\mathcal O(\mathrm{Proj}\,R[x_0,\cdots,x_n])=R$? Workflow for converting LaTeX into Open Office / MS Word Format I often have to write up reports based on the analysis of some data. I use R to analyse the data and export tables, figures, and text. This is then included into a LaTeX document either using input or Sweave ().  However, when I collaborate with others, I sometimes need to provide a document in Open Office / MS Word format.  Question:  Thus, assume the simplest scenario   I have a LaTeX document with text, tables, and figures I need to export this reliably into Open Office or MS Word format: this includes mathematical formulas, table formatting, and quality figures) I don't need to go back from MS Word to LaTeX   What is a reliable, efficient, and preferably free process?  Initial Thoughts:   Export to HTML,  LaTeX - LyX - ODF Use odfWeave  that deals with some specific issues associated with LaTeX to Open Office conversion    I was hoping that there is an expert out there who has worked out a good system already. Foo* set = new Foo[100]; // ... delete [] set;   You don't pass the array's boundaries to delete[]. But where is that information stored? Is it standardised? I have a file containing two columns and 10 million rows. The first column contains many repeated values, but there is a distinct value in column 2. I want to remove the repeated rows and want to keep only one using awk. Note: the file is sorted with values in column 1. For example:    1.123 -4.0 2.234 -3.5 2.234 -3.1 2.234 -2.0 4.432 0.0 5.123 +0.2 8.654 +0.5 8.654 +0.8 8.654 +0.9 . . . .   Expected output  1.123 -4.0 2.234 -3.5 4.432 0.0 5.123 +0.2 8.654 +0.5 . . . . At what point is a creature's toughness calculated? If I have  where I can sacrifice a creature and put X 1/1 token creatures onto the battlefield, where X is the sacrificed creature's toughness.  If I have a creature that is 4/4 and cast  to give it +3/+3 then sacrifice it? Do I get 4 tokens or 7?  Also what if my 4/4 creature was dealt 2 combat damage before I sacrificed it? Do I get 2 or 4 creatures?  Finally, what about counters? If my 4/4 had a +1/+1 do I get 4 or 5 tokens? How to run test methods in specific order in JUnit4? Group of even order contains an element of order 2 Born's Rule, What is the Reason? I'm downloading Sentinel-2 tiles from  but they dont seem to be 100 % aligned. Right image is band 08 Sentinel-2 added to ArcGis Desktop (i have done nothing more than adding the 08.jp2 to the map), left esri basemap photo. The offset in Sentinel is about 35-40 meters. How do i correct them?    . Level-1C, Sentinel-2:   SOLUTION:  From HDunn's answer i did this:  Using a road vector layer i added five point pairs and calculated difference in x and y coordinates. The mean differences i used as xvalue and y value in Shift tool. Result: Is there a built-in checksum/hash utility on Windows 7? Projectile Motion - Arrow In a 2D game, I simply want to draw the trajectory of an arrow in flight. With the code below, the trajectory (the parabola) looks right, but the angle (or rotation) or the arrow isn't.   float g = -9.8f; float x = (launchVelocity * time); float y = (launchVelocity * time) + (0.5f * g * (float)Math.Pow(time, 2)); float angle = (float)Math.Tanh(y / x);   What am I missing? Thanks.