roman numbers are not correctly cross-referenced, conflict between hyperref and other packages?
When do I need to invoke \phantomsection?
Random real numbers that sum up to specific value I've generated some JSON and I'm trying to pull it into an object in JavaScript. I keep getting errors. Here's what I have:  var data = '{"count" : 1, "stack" : "sometext\n\n"}'; var dataObj = eval('('+data+')');   This gives me an error:   unterminated string literal   With JSON.parse(data), I see similar error messages: "Unexpected token ↵" in Chrome, and "unterminated string literal" in Firefox and IE.  When I take out the \n after sometext the error goes away in both cases. I can't seem to figure out why the \n makes eval and JSON.parse fail. Mark or don't mark required fields if all are required? If all fields in a form are required should they be marked somehow (eg. with an asterisk)?  I see this done a lot and find it redundant?  There could be a difference in big forms and small forms, but in big ones I would add a note at the top that all fields are required, but I wouldn't necessarily do that on small ones.  What do you think is the right approach? Positive operator has a positive spectrum? Let $T : \operatorname{dom}(T) \rightarrow H $ be a positive self-adjoint operator, is it then true that $\sigma(T) \subset [0,\infty)$? This is something that sounds natural and I guess that it is true. For bounded operator, this can be easily shown, but the only proof I know cannot be adapted to unbounded operator, so I was wondering if anybody here knows how to show this? I'm studying abstract algebra for the first time.  let $F$ be a field. I learned that polynomials over field $F$ means polynomials with coefficients in $F$ (denoted by $F[x]$). But when I keep studying, I get to confused the word, 'polynomial functions from $F$ to $F$'.  Firstly, I consider this as induced functions from $F[x]$, so I guess all coefficients of these functions are in $F$. But let $F_{4}$ be a finite field consisting of four elements $\{0, 1, a, b\}$. and let $f: \{0,1\} \rightarrow \{0,1\}$ be a function defined by $$ f(x)=ax^2-ax$$ Since $\{0,1\}$ is a subfield of $F_{4}$ and $f(0)=0, f(1)=0$, I think $f$ is a example polynomial functions from $F$ to $F$ of which coefficients are not in $F$. Am I wrong? if so, please help me.  I encounter this problem while solving 'the set of all polynomial functions from $\Bbb{Z_{3}}$ to $\Bbb{Z_{3}}$ cannot possibly be isomorphic to $\Bbb{Z_{3}}[x]$'. Number Theory: Find all solutions of $\phi(n)=16$ and $\phi(n)=24$ I have this homework problem assigned and I'm a little confused in solving it:  Find all solutions of $\phi(n)=16$ and $\phi(n)=24$ (where $\phi(n)$ is the Euler phi-function).  The hint that's provided says:  If $n=p_1^{k_1}p_2^{k_2}\cdots p_r^{k_r}$ satisfies $\phi(n)=k$, then $n=\frac{k}{\prod (p_i-1)}\prod p_i$. Thus the integers $d_i=p_i-1$ can be determined by the conditions (1) $d_i\mid k$, (2) $d_i+1$ is prime, and (3) $\frac{k}{\prod d_i}$ contains no prime factor not in $\prod p_i$.  I'm ok with proving the statements in the hint and I know how to get them, but I'm not sure how to apply them to solve the problem. How to close/open a view panel I can't find a way to close a view panel, in particular the horizontal at the bottom, is pretty useless to me at this moment. How to calculate $5^{3^{1000}}\bmod 101$? Improving your own suggested edit makes you leave the First Posts review queue When reviewing the First Posts (and Late Answers) review queue, after you suggest an edit, you're back in the review queue and the I'm Done button is activated. So far, so good, but when I realize I want to edit something else as well (I often forget the tags), I can click the 'edit' link again. When I'm done improving my suggested edit, I'm suddenly outside the review queue.    This does not happen if you have enough reputation (2k) to edit posts straight away; then you always stay in the review queue. Faithful representation of the Heisenberg group I have been trying to solve a problem concerning the Heisenberg Lie group $H$. Show that there does not exist a faithful representation $\rho:H\to\text{GL}(2,\mathbb{R})$.  Any ideas about how to solve it would be very appreciated. Why is my Canon 300D not switching on despite changing both batteries and the CF card? How to determine the genre of a song? I listen to many songs and I always wonder how the genre of a song is determined. Is it by listening to the song, or by the song's info like the artist, year released and so on? Why is this trigger finding a null value despite the field being populated? Financial Account is a child of Client in a Master-Detail relationship. The client (John Sandbox) has a Wealth Advisor, 'John Smith', on his client record, however, the system debug that pulls finAcct.client__r.Wealth_Advisor__c shows this field as 'null'.  Does anyone have any idea why I am not getting the value in this field? The goal of this trigger is to make sure that the lookup fields for the Client Team (one of which is 'Wealth Advisor') always match between the client record and the financial account record when they are linked. Thanks!      Boolean UpdateMe;     List &lt;Financial_Account__c&gt; FinAcctsToUpdate = new List&lt;Financial_Account__c&gt;();      //Loop through all Financial Accounts in Trigger.new     for(Financial_Account__c finAcct : newFinAccts){         UpdateMe = false;          System.debug('finAcct WA Lookup: ' + finAcct.Wealth_Advisor_Lookup__c);         System.debug('Client: ' + finAcct.client__c);         System.debug('Acct WA: ' + finAcct.client__r.Wealth_Advisor__c);          if (finAcct.Wealth_Advisor_Lookup__c != finAcct.client__r.Wealth_Advisor__c){             finAcct.Wealth_Advisor_Lookup__c = finAcct.client__r.Wealth_Advisor__c;             UpdateMe = true;         }         if(UpdateMe == true){             FinAcctsToUpdate.add(finAcct);         }         UpdateMe = false;     }      if(FinAcctsToUpdate.size() &gt; 0 ){         update FinAcctsToUpdate;     } Start Bounty has a different colour This may be me being silly, but has the start a bounty text colour changed?  I distinctly remember it being the same colour as the add comment text? What are the mechanics of time dilation and length contraction? Going beyond the mathematical equations involving light and the "speed limit of the universe", what is observed is merely a phenomenon and not a true explanation of why time dilates or length contracts.  It has been proven to work out, but do we know why?  Is it something that happens at a subatomic level? What's the application extension? (aka .exe, .app, etc.) I'm new to Ubuntu. What's the application extension for development reasons? I know Windows is mainly .exe and Mac is .dmg or .app. Does Linux have an unique one? Execute command in remote active terminal I noticed that when I had a helium filled, latex balloon inside of my car, it moved forward in the cabin as I accelerated forward. The faster I accelerated forward, the faster the balloon went from the back of the car to the front of the car. The balloon didn't have a string.  This became a game with my 4 year old as we drove home. We figured out where the balloon would go based on how fast I accelerated, turned corners etc.  I expected that it would act a lot like the water in a cup does, but it was the total opposite it seemed.  What forces caused this behavior?  I assumed it has something to do with the fluid dynamics in the closed cabin, but I can't figure it out. Do film industries outside India use intervals/Intermission? Is there a formal proof for $(-1) \times (-1) = 1$? It's a fundamental formula not only in arithmetic but also in the whole of math. Is there a proof for it or is it just assumed?