Can I edit the hosts file on my android without root access?
How to edit 'etc/hosts' file in non-rooted phone?
What apps are people using to record voice meetings on the iPad? I'm looking to do some light recording of voice conversations and field recordings on my iPad using the built in microphone.    seems to be the obvious Apple solution, but is too heavy for my needs. By the time I set up a new project, turn off the metronome, etc..., I find myself wishing I just had  running on my iPad.   I don't mind paying for the app, but wondered what people are using for both light voice recording as well as longer and more numerous recording / light editing where some tagging and filing might be possible. For which values $r, s \in \mathbb R$ is the set $\{u, v, w\}$ linearly independent? Can we balance the whitespace above/below headings? In January, some additional whitespace  below h1, h2 and h3 headings,  more whitespace below the headers than above them.  Could we have the whitespace above the headings be more than the whitespace below them?  I find some posts a bit hard to read, like the current rendering on the left:   &nbsp; &nbsp; &nbsp; Do Americans remove the "t" in "wanted"? When you pronounce the phrase "I got a message you wanted to see me", is the "t" usually deleted in the word "wanted"? Thank you. Note: This is intended to become a canonical post.  I got a dedicated graphics card of type XXX and it claims I need at least a YYY Watt PSU.   How big does my PSU really need to be? Mark questions to receive notifications and updates? I'm looking for either a single word or phrase that would describe either someone or the action of dismissing someone's opinions as something "socially unpopular", without giving any reasoning why, either just to spite them, because they have a poor counter-argument, have been backed into a corner, or something similar.  For example, someone who supports something politically incorrect (like, say, stronger gun control or help for male domestic abuse) might have their views dismissed as racist or sexist or liberal without actually acknowledging and debating against them, thus labeling the former as something they might not be.  I was talking to a friend earlier about politics, and she complained about Germany's immigration problem. She said one issue was that many politicians that try to support stronger immigration laws would immediately be shot down as racist or a nazi and forced to resign, instead of being presented with counter-arguments. Regardless of whether you agree with them or not, what would describe that?  EDIT: Forgot to specify -- the word or phrase I'm looking for would be used in an informal context. And to address further questions, to be used when the person's opinion has legitimate worth and isn't just "being racist" etc, i.e. the dismisser is incorrect, and is only making these accusations because they can't argue further. (Added emphasis to the last sentence of the first paragraph) Duplication formula for gamma function Using the  for $\Gamma(x)$ and $\Gamma\Big(x + \frac12\Big)$, how can I prove the ? This is problem $10.7.3$ in the book , by Boros and Moll.  Any help is highly appreciated. Bad Character code (256)/ \select@language{greek} How do you reindex an array in PHP but with indexes starting from 1? I have the following array, which I would like to reindex so the keys are reversed (ideally starting at 1):  Current array (edit: the array actually looks like this):  Array (  [2] =&gt; Object     (         [title] =&gt; Section         [linked] =&gt; 1     )  [1] =&gt; Object     (         [title] =&gt; Sub-Section         [linked] =&gt; 1     )  [0] =&gt; Object     (         [title] =&gt; Sub-Sub-Section         [linked] =&gt;      )  )   How it should be:  Array (  [1] =&gt; Object     (         [title] =&gt; Section         [linked] =&gt; 1     )  [2] =&gt; Object     (         [title] =&gt; Sub-Section         [linked] =&gt; 1     )  [3] =&gt; Object     (         [title] =&gt; Sub-Sub-Section         [linked] =&gt;      )  ) How to pipe output from one process to another but only execute if the first has output? How can I rewrite this command to only email if there is output from the mailq | grep?  mailq | egrep 'rejected|refused' -A 5 -B 5 | mail -s 'dd' email@email   Is this even possible on one line?  See  for a more general case than sending email. I am trying to calculate the following limit without Stirling's relation.  \begin{equation} \lim_{n \to \infty} \dfrac{n!}{n^n} \end{equation} I tried every trick I know but nothing works. Thank you very much. How do I determine how many spell slots I have if I multiclass into more than one spellcasting class? For example, I have a character that is a level 3 Wizard, a level 5 Eldritch Knight Fighter, a level 4 Arcane Trickster Rogue, a level 4 Paladin, and a 4 Warlock. How many spell slots do I have and how do I determine this? Can I mask an input text in a bat file? Correct usage of will and would Are there recommendations or pitfalls for playing an archer cleric? In my 4E game, a player is going to try an elven cleric with a longbow (and a mace, just in case). She chose mostly ranged powers. Are there any caveats to playing such a character, or any builds that I could recommend for her? I have attempted a proof of this, but upon looking at my notes, I feel it might be incorrect: it is noticeably simpler than the one in my notes.  Proposition: any permutation in $S_n$ can be written as a product of disjoint cycles.  Proof (attempt): $s\in S_n$. Let $\langle s\rangle$ act on $X=\{1,\cdots,n\}$. Define $x\sim x'\iff x'\in\text{Orb}(x)$ for $x,x'\in X:$ this is clearly an equivalent relation, hence the orbits partition $X$. Each orbit corresponds a cycle in $s$, so we are done.  Does this hold, or have I missed something vital? hide div if clicked outside of it I want to  GRANT SELECT     ON ALL TABLES     TO foo;   But postgres tells me I have a syntax error at "TO". It expects a GRANT like:  GRANT SELECT     ON ALL TABLES     IN SCHEMA public     TO foo;   We have a handful of tables that have been sharded such that public, shard123, and shard124 all have a table my_table, and public.my_table is the parent of both shard123.my_table and shard124.my_table. I've GRANTed SELECT to foo for public schema, but foo doesn't have permission for any of the shard schemas.  I've also done:  ALTER DEFAULT PRIVILEGES     FOR ROLE dba     GRANT SELECT     ON TABLES     TO foo;   ...which should automatically grant for any new tables and schemas made from now on.  There are 1000 &lt; n &lt; 10000 shards/schemas, so GRANTing separately for each shard/schema is impractical.  How can I GRANT to a role for all existing tables across all existing schemas (all shards)?  Or even better, can I GRANT for all schemas LIKE 'shard%'? What do I need to install LED strip lighting? I've been looking to install LED strips, either RGB or white for lighting and ambiance. It wouldn't be the main lighting of the room, so no necessity for high power LEDs.  The perimeter of the room is a little less than 25 meters. Looking around in online stores, I saw that the reels come in maximum lengths of 5 meters, so I would need five of those.  What I'm not sure is how to connect the strips together.  I was looking at , or  with .  If I choose the white LEDs, what power supply, controller, and connector would you recommend to be able to daisy chain the strips?  If I choose the RGB LEDs, what kind of data repeaters would work to be able to control all the strips at once?