Where are windows command prompt customized colors stored?
Where are the default settings saved for the Command prompt defaults?
Strange artifacts along window borders after waking computer from sleep mode How to block and unblock https access on OS X 10.9 I am working on a test project that requires me to block https access for a specific app on my Mac (OS X 10.9).   The instruction provided are "Chinese" to me and I have no idea where to start:  (Example: Alter the iptables) Steps:   Block the port:  root@QA9:/opt/appname/appnamerouter2# iptables --list root@QA9:/opt/appname/appnamerouter2# iptables -A INPUT -p tcp --destination-port 443/8443 -j DROP root@QA9:/opt/appname/appnamerouter2# iptables --list  For Open the Port:  root@QA9:/opt/appname/appnamerouter2# iptables -D INPUT 1 Is there a way to see how the markup of a per-site meta answer is formed? I sometimes see a useful markup feature in a per-site meta answer. However, I cannot edit it to see how one did it, since editing (or suggesting edits) is disabled for users with less than 2k reputation on per-site metas.  Is there a way to see the source code of a per-site meta answer? How to bake to vertex colors in blender cycles? When users create a node, they should be redirected to a payment page; if payment is successful, the user can see the node.  Is there any way to achieve this? Creating label in QGIS? I am using QGIS 2.18.16 on Windows 10.    What I want is a label to appear within the boundaries of a polygon.    I select a layer, then select command Layer>Labelling, and I get:    From here, I can change "No Labels" to "Show labels for this layer".  But I can't actually create label text.  I find a clue in a prior question:    “Labelling polygon using QGIS?”    The answer was:  The layer you are trying to label must have at least one attribute field populated with data. You can then turn on labelling in Layer Properties and select which attribute field to use for your labels.  I can enter command Layer>Open Attribute Table, and what I get is:    If I need something in the attribute table in order to apply a label, how do I accomplish that? Alien studying human race for mental capacity and ESP What is the function of this circuit? Just wondering if someone can give me an explanation for this capacitor layout - what is it's function? The chip to the right is an ADC.  Circled in blue.    I'm guessing it is well known but i don't know how to search for it. In chapter 2 section 7 (pg 151) of Hartshorne's algebraic geometry there is an example given that talks about automorphisms of $\mathbb{P}_k^n$. In that example Hartshorne states that $\mathcal{O}(-1)$ has no global sections. However, we know that $\mathcal{O}(1)$ is generated by global sections. This is stated at the first of the section that if $\mathbb{P}_k^n = Proj k[x_0,...,x_n]$ then the $x_0,...,x_n$ give rise to global sections $x_0,...,x_n\in\Gamma(\mathbb{P}_k^n,\mathcal{O}(1))$.  I guess I don't understand this twisted structure sheaf very well, or to be honest I don't think I understand structure sheaves in general as well as I would like. The twisting part seems simple at first- you shift the grading of Proj over and then take the structure sheaf.  Admittedly I don't feel comfortable using the structure sheaf other than using the basic facts about it that Hartshorne gives when it is introduced. If anyone could give some insight as to what's going on here or how I might be able to understand this better it would be much appreciated. Thanks. Why are place names in some old books a capital letter followed by dashes, and what is this phenomenon called? This is something very odd I have noticed in some older books, most recently in "Crime and Punishment" by Dostoyevsky.  Place names, when not specifically essential or well-known, are made up of one letter followed by a line of underscores (i.e. "X_____").  I think I recall reading something similar in another older work, possibly by Jane Austin?  Apologies if this is a duplicate; I've searched quite extensively and can't seem to figure it out.  I don't know a name for this, so can't search easily for it. Python is quite cool, but unfortunately, its debugger is not as good as perl -d.    One thing that I do very commonly when experimenting with code is to call a function from within the debugger, and step into that function, like so:  # NOTE THAT THIS PROGRAM EXITS IMMEDIATELY WITHOUT CALLING FOO() ~&gt; cat -n /tmp/show_perl.pl 1  #!/usr/local/bin/perl 2 3  sub foo { 4      print "hi\n"; 5      print "bye\n"; 6  } 7 8  exit 0;  ~&gt; perl -d /tmp/show_perl.pl  Loading DB routines from perl5db.pl version 1.28 Editor support available.  Enter h or `h h' for help, or `man perldebug' for more help.  main::(/tmp/show_perl.pl:8):    exit 0;  # MAGIC HAPPENS HERE -- I AM STEPPING INTO A FUNCTION THAT I AM CALLING INTERACTIVELY   DB&lt;1&gt; s foo()  main::((eval 6)[/usr/local/lib/perl5/5.8.6/perl5db.pl:628]:3): 3:      foo();     DB&lt;&lt;2&gt;&gt; s main::foo(/tmp/show_perl.pl:4):     print "hi\n";     DB&lt;&lt;2&gt;&gt; n hi main::foo(/tmp/show_perl.pl:5):     print "bye\n";     DB&lt;&lt;2&gt;&gt; n bye     DB&lt;2&gt; n Debugged program terminated.  Use q to quit or R to restart,   use O inhibit_exit to avoid stopping after program termination,   h q, h R or h O to get additional info.      DB&lt;2&gt; q   This is incredibly useful when trying to step through a function's handling of various different inputs to figure out why it fails.  However, it does not seem to work in either pdb or pydb (I'd show an equivalent python example to the one above but it results in a large exception stack dump).  So my question is twofold:   Am I missing something? Is there a python debugger that would indeed let me do this?   Obviously I could put the calls in the code myself, but I love working interactively, eg. not having to start from scratch when I want to try calling with a slightly different set of arguments. XGBoost Loss function Approximation With Taylor Expansion There's vs There are How can I show that $n! \leqslant \left(\frac{n+1}{2}\right)^n$? Show that $$n! \leqslant \left(\frac{n+1}{2}\right)^n \quad \hbox{for all } n \in \mathbb{N}$$  I know that it can be done by induction but I always find line where I do not know what to do next. Construct a network of citations I am programming a tile based game and I have some basic tiles (grass, dirt, etc..), but I can't figure out how to make good random map generation, because when I do some really random selection, if the tile should be grass/dirt, I get this:    I understand why this is happening, but what I want is to create some random continuous areas of grass or dirt. Something that would make more sense, like this: Universal Chord Theorem Enlarged partition, filesystem still reports old size Spaces and em-dash In using the em-dash, where do you put the spaces? Which of the following is correct?     School is based on the three R’s —reading, writing, and ’rithemtic.   or     School is based on the three R’s— reading, writing, and ’rithemtic.   or     School is based on the three R’s — reading, writing, and ’rithemtic. Why does the $\sum_{n>1}(\zeta(n)-1)=1?$ While I was looking at the values of the zeta function for the first natural numbers, I noticed that the sum of the values minus $1$, converge to $1$. Better put: $$\sum_{n=2}^{\infty} \left(\zeta(n)-1\right) = 1 $$ Furthermore, if you use only the even numbers for the zeta function, the sum will converge to $\frac{3}{4}$, or $$\sum_{n=1}^{\infty} \left(\zeta(2n)-1\right) = \frac{3}{4}$$  Leaving $$\sum_{n=2}^{\infty} \left(\zeta(2n-1)-1 \right)= \frac{1}{4}$$  This is probably common knowledge among mathematicians, but I couldn't find much about it on the internet. Is there a proof of this or perhaps even a simple explanation why this is so?