I recently started playing/GMing Pathfinder (beginner rules) and currently shopping around for the Core Rulebook (planning ahead). The way the PRD puts it, it sounds like the Core Rulebook is entirely unnecessary:     This compendium is NOT the official Pathfinder Roleplaying Game!   Players interested in a user-friendly introduction to the Pathfinder   system will want to purchase the complete Pathfinder Roleplaying Game   Core Rulebook and the Pathfinder RPG Bestiary, which comes complete   with more than 350 monsters to menace your player characters.      Both books contain hundreds of beautiful full-color illustrations and   lots of descriptive text to explain and introduce key rules concepts   necessary to fully enjoy the Pathfinder Roleplaying Game experience. ()   I do enjoy reading their "user-friendly" material, but if all I'm missing out on is wordiness and pretty pictures I have no problem at all with that and saving $30-$50.
Does the  core rulebook contain any information that is not included already on  that would make it worth it to buy the PDF version of the manual? Or does it only have extra descriptive text?
When using sudo to allow edits to files, I regularly get 'permission denied'.  For example, my mouse is jittery and sluggish, so I want to disable polling:  sudo echo "options drm_kms_helper poll=N"&gt;/etc/modprobe.d/local.conf   I'm prompted for a password, and then get:  bash: /etc/modprobe.d/local.conf: Permission denied   So I tried to do a temporary change to disable polling by using:  sudo echo N&gt; /sys/module/drm_kms_helper/parameters/poll   Yet again the system responded with:  bash: /sys/module/drm_kms_helper/parameters/poll: Permission denied   Any ideas? Can someone tell me if $\frac{3}{5}$, $2+3\sqrt{-5}$, $\frac{3+8\sqrt{-5}}{2}$, $\frac{3+8\sqrt{-5}}{5}$, $i\sqrt{-5}$ are all quadratic integers in $\mathbb Q[\sqrt{-5}]$. And if so why are they in $\mathbb Q[\sqrt{-5}]$. Updating directly from SP1 to SP3 I am considering applying the Service Pack 3 in a SQL Server 2008 with Service Pack 1; however, I was not able to find if there are any drawbacks in this process, specially regarding to Replication Services and Reporting Services.   Has someone done this kind of update? Was it smooth or did it generate many issues? Why don't players get extra xp for large encounters? Based on the table Encounter XP Multipliers from the Basic Rules' DM section, Page 57, when you're building encounters in 5E, you include an XP modifier depending on the number of creatures your PCs will be fighting: 1.5x for a pair, 2x for 3-6 and so on. However, the PCs only get the base XP as a reward.     This doesn't change the actual xp reward ... just your calculations of how difficult the encounter is.   Why is this? After acknowledging that battles vs multiple opponents are more difficult, why not reward them as such? The probability that an initial quantum state $|\psi_i\rangle$ becomes the final quantum state $|\psi_f\rangle$ is given by  \begin{eqnarray} P(i \rightarrow f) &amp;=&amp; |\langle\psi_f|\psi_i\rangle|^2 \tag{1}\\ &amp;=&amp; \langle\psi_f|\psi_i\rangle^*\langle\psi_f|\psi_i\rangle \\ &amp;=&amp; \langle\psi_i|\psi_f\rangle\langle\psi_f|\psi_i\rangle. \end{eqnarray}  Equation (1) seems to show that the probability for the transition ($i\rightarrow f$) can be interpreted as the system both moving forward in time ($i\rightarrow f$) with amplitude $\langle\psi_f|\psi_i\rangle$ and backward in time ($f\rightarrow i$) with amplitude $\langle\psi_i|\psi_f\rangle$ simultaneously.  Does this reasoning help to explain the Born rule? (Is it like the Transactional Interpretation of QM?)  I guess we must experience the macroscopic direction of time ($i\rightarrow f$) in accord with increasing entropy in an expanding universe whereas microscopically QM works both forwards and backwards in time.  Addition  This is an improved version of the argument including time-evolution operators.  The probability that an initial quantum state $|\psi_i\rangle$ evolves to become the final quantum state $|\psi_f\rangle$ is given by  \begin{eqnarray} P_{i \rightarrow f} &amp;=&amp; |\langle\psi_f|U_{i \rightarrow f}|\psi_i\rangle|^2 \tag{2}\\ &amp;=&amp; \langle\psi_f|U_{i \rightarrow f}|\psi_i\rangle^*\langle\psi_f|U_{i \rightarrow f}|\psi_i\rangle \\ &amp;=&amp; \langle\psi_i|U^\dagger_{i \rightarrow f}|\psi_f\rangle\langle\psi_f|U_{i \rightarrow f}|\psi_i\rangle \\ &amp;=&amp; \langle\psi_i|U_{f \rightarrow i}|\psi_f\rangle\langle\psi_f|U_{i \rightarrow f}|\psi_i\rangle \end{eqnarray} where $U_{i \rightarrow f}$ is the forward-time evolution operator and $U_{f \rightarrow i}=U^\dagger_{i \rightarrow f}$ is the corresponding backward-time evolution operator.  Equation (2) seems to show that the probability $P_{i\rightarrow j}$ can be interpreted as the system first evolving forwards in time and then evolving backwards in time.  Perhaps this is an example of Murray Gell-Mann's  that "Everything not forbidden is compulsory"? At the quantum level, below observable probabilities, there is nothing to stop time flowing both forwards and backwards. missing $ inserted error for equation I get the missing $ inserted error for the following code:  \begin{equation}  C = $ \frac{2}{\omega^2N^2\mu\pia} $  \end{equation}   I have tried out different changes based on Googling for this error, but nothing seems to help. Any suggestions would be appreciated. CBC-MAC Padding weaknesses I'm trying to wrap my head around how different padding methods affect the strength of CBC-MAC's. Suppose a message is split into different blocks, m1, m2, m3 etc. and the last block is padded with 0's to fill it if needed.  If the message is intercepted, why can an attacker easily create another message with the same MAC tag for the same key as the message that was intercepted?  If another message is intercepted that does not contain any padding (so it completely fills the last block), how does this make it more difficult for the attacker to create a tag that matches? Does the message need to meet any conditions for the attack to work?  If this padding method is not secure, what is a better method to secure against these attacks? Would it be more secure if the padding was just random? Not sure how that would work. How to close entire application when application has more than 2 forms without showing messagebox more than once How does the SQL injection from the "Bobby Tables" XKCD comic work? Just looking at:   (Source: )  What does this SQL do:  Robert'); DROP TABLE STUDENTS; --   I know both ' and -- are for comments, but doesn't the word DROP get commented as well since it is part of the same line? Unable to find minimized terminal I just installed 11.10 and found that once I minimize the terminal window, I can't bring it back. All other Windows are getting minimized to the Unity launcher and I can relaunch them from there. If I go to the launcher and click on terminal a new terminal session is created and the old one is lost completely. This is the first time I am facing such a problem and all my previous installations of 11. 10 didn't throw up any such behaviors. Any suggestions? Block quote with big quotation marks I know you can export the asset as a PSD and open it in Photoshop. Is there a more seamless way?  Update:  I'm an idiot.  Someone else created the logo, and the shadow was it's own layer on multiply and not a normal drop shadow effect. Where to get 2010 Census Block data? I would like to download 2010 Census Block Data for several towns and I can't seem to find it on American Factfinder.   Is it there? And if not, does anyone know where I could find it? At what times before $1{:}30$ in the afternoon do all three doctors schedule their appointments to begin at the same time? In a certain medical group, Dr. Schwartz schedules appointments to begin $30$ minutes apart, Dr. Ramirez schedules appointments to begin $25$ minutes apart, and Dr. Wu schedules appointments to begin $50$ minutes apart. All three doctors schedule their first appointments to begin at $8{:}00$ in the morning, which are followed by their successive appointments throughout the day without breaks. Other than at $8{:}00$ in the morning, at what times before $1{:}30$ in the afternoon do all three doctors schedule their appointments to begin at the same time?  I'm not sure how to approach this question. They all begin at the same time at $8{:}00$. Also doesn't the overlapping of appointments depend on how long their respective appointments take? I am trying to pass a member function within a class to a function that takes a member function class pointer.  The problem I am having is that I am not sure how to properly do this within the class using the this pointer.  Does anyone have suggestions?  Here is a copy of the class that is passing the member function:  class testMenu : public MenuScreen{ public:  bool draw;  MenuButton&lt;testMenu&gt; x;  testMenu():MenuScreen("testMenu"){     x.SetButton(100,100,TEXT("buttonNormal.png"),TEXT("buttonHover.png"),TEXT("buttonPressed.png"),100,40,&amp;this-&gt;test2);      draw = false; }  void test2(){     draw = true; } };   The function x.SetButton(...) is contained in another class, where "object" is a template.  void SetButton(int xPos, int yPos, LPCWSTR normalFilePath, LPCWSTR hoverFilePath, LPCWSTR pressedFilePath, int Width, int Height, void (object::*ButtonFunc)()) {      BUTTON::SetButton(xPos, yPos, normalFilePath, hoverFilePath, pressedFilePath, Width, Height);      this-&gt;ButtonFunc = &amp;ButtonFunc; }   If anyone has any advice on how I can properly send this function so that I can use it later. What is the typical post processing work flow for amateur photographers? I love photography; I hate postprocessing.  Seeing that I am an amateur, not just by virtue of not getting paid for it, but also being rather new to the whole affair, I already am used to most of my shots just not being that great. While reading blogs and websites I get the impression that condensing ~100 frames in maybe a handful of shareworthy photos is not rare.  But even so, after a vacation quite a few photos have accrued. What is a common workflow to sort, post-process and share photographs for a beginner? What are common postprocessing steps? What kind of automations do people use?    Edit: I phrased the question generically so that it can be of use to as many people as possible. But I understand that without anything to go by, it might be a bit hard to answer. Therefore, while I own no paid-for software, this is what I use:   I have an EOS 500D crop camera as picture source and I use  for development,  for any touching up I need to do. (Which is not much, so far.)  (in a VM) is my photo catalog. My destination is my Flickr stream for the most part, sometimes I send photos directly to family and friends.   On the input side, I mostly am in practice mode; shooting whatever I can place in front of my lens. I have not yet picked a specialty. I would like to minimize time spent fine-tuning photos in software. These sort of "batch processes" are a part I realize is important, but not much fun to me.  I am quite computer-literate, so I am not afraid of piecing together tools that can be of use, but the more "" this can be, the more people who don't spend their life in front of a PC can benefit too. :) If spending money on something will make my life easier, I am quite willing to consider it. However as photography does not bring any income, something as large as Photoshop (for example) is somewhat hard to justify as an investment. Let's say I launch a bunch of processes from a ssh session. Is it possible to terminate the ssh session while keeping those processes running on the remote machine? How to write a LaTeX package that bundles not only .sty and .cls files but also some logos in .pdf or .eps formats? I would like to make a LaTeX package with the following subdirs:   tex/latex/common (a common .tex file shared among beamer and letter) tex/latex/resources (lots of pdf and eps files with graphical resources) tex/latex/mybeamer (a custom beamer theme with 5 .sty files) tex/latex/myletter (a .cls file for a letter template)   I would like to package these files into a single LaTeX package that users could install in an easy way. I read about the .ins and .dtx files and I can see how to pack the .sty and .cls files but what about the extra graphics - the resources folder which contains several PDF and .eps files? In 2018, Kyle Reese (a normal civilian who wasn't part of Resistance) was on the top in the hit list of Skynet. It means that Skynet of that time had information from future about Kyle Reese being father of future leader of human resistance. Right?  Why didn't Skynet kill Kyle Reese instantly after his detection kicking John Connor out of existence? What does "Suit yourself" mean?