No background on parent element containing floated elements
Why doesn't the height of a container element increase if it contains floated elements?
How can I run a program on startup, minimized? I just want Telegram to be run and I have added it to startup apps. The point is that I need it to be minimized. Any commands? How to format hard disk in Ubuntu 14.04? Uncertainty and wave-trains My textbook and the following extract from feynman's lectures present the same idea regarding wavetrains and uncertainty in their wavelengths. Why is it that a wavetrain confined to some space has an uncertainty in its wavelength or the wave number? Is not a confined wave-train equivalent to a burst of successive pulses which can have a definite wavelength according to their origin or nature of origin.   Next, i understand that the De Broglie relation relates the uncertainty in wavelength to the uncertainty in momentum but what links the finiteness of the wave-train to the uncertainty in position? Resize screen for Dead touch zone I have Star N7189 (5.5") with the lower zone of touch screen dead     The menu and back buttons don't work,but the physical home button works.   I tried to press hard on the edges of the screen, I tried to apply a twist from the short sides as if it were nothing but a wet towel. I did the hard reset but it did not work.  Sometimes pressing dead area, the phone takes it as menu button  As well as replacing the screen what other methods can I try? Is there any app, launcher or trick to resize the screen usable only to the working area?  P.S. a few hours after leaving it in airplane mode suddenly the touch had this problem but I do not remember if I inadvertently placed something heavy in that area of ​​the cell. How can I find the difference between two angles? Frobenius Inequality Rank I was looking for an answer for this problem in terms of matrices, but I really don't know how to prove this result. The proposition says that:  Let $A\in M_{m\times k}(\mathbb{C})$, $B\in M_{k\times p}(\mathbb{C})$ and $C\in M_{p\times n}(\mathbb{C})$, then $\textrm{rank}(AB)+\textrm{rank}(BC)\leq \textrm{rank}(B)+\textrm{rank}(ABC)$ I'd like to see if somebody has been trying to log-in by brute-force into my Ubuntu 12.04 server over SSH. How can I see if such activities have been taking place? 2 GROUP BY WITH DISTINCT , SUM , COUNT : PHP MYQL Ref :   I got answer (thanks coytech ) but i need one more column in its :  as per :  id | mid | pid | owgh | nwgh | 1    3      12    1.5    0.6 2    3      12    1.5    0.3 3    3      14    0.6    0.4 4    3      15    1.2    1.1 5    4      16    1.5    1.0 6    4      17    2.4    1.2  7    3      19    3.0    1.4   i got answer      Select mid ,          COUNT(distinct pid) as cpid  ,          SUM(nwgh) as totalnwgh  from test  GROUP BY mid   sqlfiddle :   mid  cpid       totalnwgh 3      4          3.8 4      2          2.2    But above i need one more column that's as below : totowgh  mid cpid        totalnwgh  totowgh 3      4          3.8        6.3 (DISTINCT value as per pid column) 4      2          2.2        3.9   where totowgh = 6.3 come by DISTINCT value of owgh column  as per distinct pid column  mid = 3 has count 5 but distinct pid  = 4 for mid=3 same way "distinct" owgh = 6.3 for mid=3 and distinct pid.  As pid=12 , column owgh value 1.5 is twice ...hence its is count 1 time hence,  1.5 + 0.6 + 1.2 + 3 = 6.3 ( please not this is as per DISTINCT value of pid )  Please note : i need distinct owgh value as per distinct pid or group by pid .. because if i replace value of owgh 0.6 with 1.5 then it will be 5.7 instead of 7.2 but value of owgh 0.6 belong to pid = 14 and not pid = 12 hence totalcount of owgh change ...but i need is 7.2  SEE WHAT I MEANS   : $E(|X-Y|)$ for $X$, $Y$ i.i.d and uniform on $[0,1]$ What is $E|X-Y|$ when $X$, $Y$ are i.i.d and uniform on $[0,1]$?   I want to do something like   $$ E(|X-Y|)=\iint_{x&gt;y}(x-y)\;dxdy+\iint_{y&gt;x}(y-x)\;dxdy=2\iint_{x&gt;y} (x-y)\;dxdy $$  But am not sure how to solve that last double integral or if this setup is right. I am using \tableofcontents to create TOC in my document. however it is appearing as shown in the image. As the numbers increase the gap between the number and text is reducing.   Thanks for your help Aku arbitrary large finite sums of an uncountable set. $\lim_{n \rightarrow \infty} \sum^n_{k=1} \frac{1}{k+n}$ Could you explain how to find this limit?  $\lim_{n \rightarrow \infty} \sum^n_{k=1} \frac{1}{k+n}$ Universe from nothing? Is there a problem with the ClearBits data dump? I'm Swedish, but living in Switzerland at the moment. Can I open a US bank account? Either when in the US on vacation or through the internet/phone?  There are lots of situations when I find myself in need of an american credit card or just a bank account. When ordering things online (most retailers refuse to accept my orders if I try to pay with my Swedish or Swiss credit card, even if I ship it to an US address... ) etc etc. Lightning Components Basics: Attributes and Expressions Trail The error :      The Packed field is either not using the lightning input component,   the checked value of the item's Packed__c attribute or the correct   type of input.   My Code:  &lt;aura:component &gt;     &lt;aura:attribute name="item" type="Camping_Item__c"                      required="true"                     default="{Name:'Tent', Price__c:100, Quantity__c:1, Packed__c:true}"                     /&gt;         &lt;p&gt; The Item is &lt;ui:outputText value ="{!v.item}"&gt;&lt;/ui:outputText&gt;&lt;/p&gt;          &lt;ui:outputText value="{!v.item.Name}"/&gt;     &lt;lightning:input type="toggle" label="Packed" name="togglevalue" value="{!v.item.Packed__c}" /&gt;     &lt;lightning:formattedNumber value="{!v.item.Price__c}" style="currency" currencyCode="USD" currencyDisplayAs="symbol"/&gt;      &lt;lightning:formattedNumber  value="{!v.item.Quantity__c}"/&gt; &lt;/aura:component&gt; Theorem.  If $\sum_{n=1}^{\infty}c_{n}$ is Cesaro summable, then $c_{n}/n$ tends to $0$.  How to prove it? No Time in Top Panel (Gnome Classic) I've been using Ubuntu with Gnome Classic for a while and I've noticed recently that in the "Indicator Applet Complete" in the Top Panel, my name and the clock have disappeared.    I think it happened a while ago when I was messing around with packages. Every time I did apt-get... it would say "the following packages can be removed by apt-get autoremove", so I did it and then the clock and my name stopped appearing.   Can anyone help me? Thanks. It would be greatly appreciated. Recently I commented on  question   and the text did got bold but the italic word didn't seem to get italic on Android Chrome(Latest Ver.), but when I saw from the PC browser, it rendered as it should...  I've attached a screenshot of my phone ... Google Analytics - Traffic Source - Search engine - (Not Provided) I am using Google Analytics, now here when I go to "Traffic Source Overview" under that it shows Keyword as "(Not provided)" which is almost 40% of my traffic source. Now more than 90% of search engine traffic is from Google and still out of that for more than 40% of keywords are "(Not provided)".  Can anyone explain me what is going wrong here or how can I get that data? Because that comes as 1st option and is biggest keyword in the list. Will that be some crawler or secure google search?