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so when I hit the compile button or even build&view, texstudio will only display the pdf if there are no errors. It will not however, tell me where the errors are, let alone what they are. Instead, the circular loading...

I'm effectively looking to change the 'Could' in this question to a 'what' or 'How'. Could higher land-based life exist on a planet with a pressure of about 1 MPa? I'm working on a story in which humans visit a...

I thought it would be sed -n /mymatch/,+5p but I get expected context address. At this point I am just guessing commands, nothing works! I want to grab every line that matches the regex and print that line and the...

The solution is simple when I use packages like tikz. But I am not supposed to use packages. I need to use post script in latex. I am trying to draw this oval using two lines and two curves in...

Morgan 4 hours 56 minutes ago.
**1** answers,
**0** views
reality-check planets physics astronomy temperature

I'm trying to create a world where there's an equator-like divide running along the axis(?) of the planet and the two hemispheres are perpetually different in terms of temperature. Basically, I want one side of the world to always be...

I need to split a file into unique file names. I can do it with sed command eg, sed -n '/scaffold135_/w 135-scaf.txt' input file.txt but it's time consuming so I need a smart way to do it faster. Below is...

I'm trialling Ordnance Survey OpenSpace Pro WMS, and I have a basic map showing all the layers I'm going to be licensed for (free ones plus vector map local). This works fine, but I'd like to make the most zoomed...

I posted this at stackoverflow and got redirected here. This does indeed look like a better place to ask. I would like to decorate my headlines (section, subsection, etc.) by adding a background color. I would like this box filled...

Consider a delta-wing plane whose wing spread angle is 61 degrees (the plane looks like a flying equilateral triangle). What would happen if a cross-wind hits it, so that the direction of motion relative to the air suddenly changes, so...

I am currently taking a class called Logic for Computer Scientist. During the first four weeks or so now we have been studying a concept Datalog with subsections Syntax and Formal Semantics and Fixed-Point Semantics. In these weeks we have...

I have this sentence I have come here to chew ... etc I know that the to in that sentence is pronounced as da in American accent. my question is, is the to is also pronounce as da in this...

I would like to place a figure side-by-side with a table, and have both of them aligned to the top. This is what I came up with: \begin{figure} \begin{minipage}[b]{0.65\linewidth} \includegraphics[width=0.9\textwidth]{3_comparative/fig/pic.pdf} \end{minipage} \begin{minipage}[t]{0.35\linewidth} \begin{tabular}{| c | c |} \hline Contrast &...

I want to find the convex conjugate (Legendre transform) of a quadratic for $1/2x^{t}Qx$ when $Q$ is positive semi-definite. If Q is non-singular, the solution is easy - the gradient is $y-Qx=0$ so $y=Q^{-1}x$ is the value for which the...

$S -> AB$ $A -> aA / epsilon$ $B ->aBb / epsilon$ What is the class of language generated by the above grammar ? I think that it generates $a^* a^n b^n | n>=0$ so it should be regular as...

I have a problem with my application and more precisely the pop up that appears empty. controls.push(new OpenLayers.Control.WMSGetFeatureInfo({ autoActivate: true, infoFormat: "application/vnd.ogc.gml", maxFeatures: 3, eventListeners: { "getfeatureinfo": function(e) { var items = []; Ext.each(e.features, function(feature) { items.push({ xtype: "propertygrid", title:...

How can I check if a point belongs to a polygon? I want to create a custom identify tool with edit option. I am using C# and ArcMap 10. My idea is to click on the polygon (building/park/etc) in ArcMap...

We know that not all people have the same screen resolution in their computer monitor. Some people prefer widescreen display in 15'', when other uses 17'' and more for their computer experience. I am designing a web page that in...

I have a plot consisting of two y-axis. When I'm adding the legendentries in each axis environment, the first legendentry will be plotted "behind" the plot of the second axis. Thus I thought a solution might be the \ref \label...

Consider $\Pi$ to be the problem to decide if there is a subset of numbers that sum to $0$ in the given list of integers. How does one construct a promise problem equivalent to $xSAT$ from this? $xSAT$ is in...

This question already has an answer here: How do I remove a directory and all its contents? 2 answers I am using Centos as my server OS and in my desktop I have a directory called "john", I need...

I created a configuration View. so it binds a lot of properties in Viewmodel. But I have a another class People and I want to assign properties of viewmodel to class People. class Viewmodel { public string name {get;set;} public...

As I understand it, the Sun will transition from its current phase as a 'yellow dwarf', to a red giant, and finally to a white dwarf. Even during these phases I understand there are transitional considerations, including the increases in...

OK, this is slightly awkward, but I guess I will just throw out the question and see what comes back. I'm a PhD candidate from Asia currently visiting a prestigious university in Europe. Recently I've noticed quite some "strange" behaviours...

I want to calculate the deviation angle \beta with the law of Snellius in a tikzpicture. My code is \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage{array} \usepackage{amssymb} \usepackage{pgf,tikz} \usetikzlibrary{arrows} \usetikzlibrary{decorations.pathmorphing} \usepackage{tkz-euclide} \usetikzlibrary{calc,intersections,through,backgrounds,snakes} \usepackage{pgfplots} \usepackage{mathtools} \newcommand{\midarrow}{\tikz \draw[-triangle 60] (0,0) -- +(.1,0);} %voor pijltjes \begin{document}...

Having followed the tutorial for deploying custom commands etc at the following link: How to deploy a custom component using a setup project It's a little different to how things were at version 9. Well I've tried many things and...

What antivirus programs are available for Ubuntu? We previously used Symantec Endpoint Protection but it does not work in Ubuntu.

OK, here is something that is me missing the obvious. I have an Excel spreadsheet consisting of 2 columns and 5 rows. The first column is formatted in Excel as a dd-mmm-yy date. The second column is a string. I...

I apologize if this has been answered elsewhere. I haven't been able to find it. I am using the minted package and I would like to have sections similar to \section{Section Headings} So I have two problems: How do I...

I've tried to solve the following exercise (Ross First Course 8th edition): I have to chose three students from three groups of $n$ students (in total exist $3n$ students): If I must choose two students of the same group and...

"Let $G$ be the group of distance preserving transformations of $\mathbb{R^2}$ which is generated by $(x,y)\mapsto(x+1,y)$and $(x,y)\mapsto(-x,y+1)$. Prove that $G$ is isomorphic to the semidirect product $\mathbb{Z} \ltimes \mathbb{Z}$ where f sends $1$ to the non-trivial automorpism of $\mathbb{Z}$." From...

On the first time I created pay period schedule, which is the type is Monthly, for example , Start, End, Transaction, and Functions of pay period is like below: 01-Jan-12 12:00 AM, 30-Jan-08 11:59 AM, 31-Jan-08 12:00 PM The above...

It is Rudin excercise 10.4 where we aim to prove $\sigma(xy)\cup\{0\} = \sigma(yx)\cup \{0\}$ for elements $x,y\in A$ a Banach-algebra.( $\sigma$ being the spectrum) In (a) we prove that $e-yx$ invertible $\Leftrightarrow e-xy$ invertible. Following the hint: Put $z= (e-xy)^{-1}$,...

Watching this incredible B-29 Superfortress flight, I was amazed to see that it required a dedicated person to manage the 4 engines and their power levels. Why was the throttle not placed between the two pilots, like the modern airliners...

I am trying to calculate the force sustained on the three labelled members of this frame (Members 1, 2 & 3). The frame will experience a uniform pressure of 1000 kPa in the area enclosed by the members. It...

Thanks to several helpful people in an earlier question ("Create a TikZ overlay with RH mirror of LH") I managed to get my pattern background where it was needed. Now circumstances have changed, and it is needed for the cover...

Maybe the answer to this question is trivial but I am stuck with my last modification for hours now. In my plot i added framed labels to add a certain distance of the labels from their axes. This works well...

Is it bad to jump your car with too many amps (i.e., with a 1000 amp jumper vs. a 400 amp jumper)? Or does the car regulate how many amps it will take? EDIT: I was told 400 amps is...

I have a txt file with string values in a single column : File.txt A B . . . Z I have a sql script with a variable called 'parameter'. script.sql declare @var varchar(255) set @var = 'parameter' select *...

Rafael Vergnaud yesterday at 07:28.
**1** answers,
**0** views
linear-algebra proof-verification determinant

A matrix $A \in Mat(n, \mathbb{F})$ is called unitary if $AA^* = I_n,$ where $A^* = \overline{A^T} = \operatorname{conj}(A^T)$ is the conjugate transpose of $A$ (where the complex conjugate is taken for every entry in $A$). Prove that $\left\vert \det{A}...

In the solving of mechanical constraints, I often meet complex trigonometric equation that I have to simplify. Here the equation I would like to simplify : Mathematica notebook presenting the equation Can you help me to simplify this equation ?...

It's no secret that computer science is a heavily male-dominated discipline. It's so male-dominated that some people have given up trying to attract more women. Yet Carnegie Mellon not only has close to 50% women in their undergraduate CS classes,...

Do routers ever combine multiple small frames into a jumbo frame then split them up again on the other end? I know that most of the time it wouldn't make sense to do because you would add latency by waiting...

I need some help: Define a 2-form on $R^n$ by $\omega=dx_1\wedge dx_2+dx_3\wedge dx_4+...+dx_{2n-1}\wedge dx_{2n}$. How to compute $\omega^n:=\omega\wedge\omega\wedge\ldots\wedge\omega$?

Josiah Ruddell yesterday at 06:55.
**1** answers,
**0** views
c# conditional conditional-operator operator-precedence associativity

We get into unnecessary coding arguments at my work all-the-time. Today I asked if conditional AND (&&) or OR (||) had higher precedence. One of my coworkers insisted that they had the same precedence, I had doubts, so I looked...

The accepted winner is isaacg, with his 7-bit ASCII answer. However, the challenge isn't over yet - this bounty is awarded to the shortest answer. If, somehow, you get all the first characters of all the other answers down into...

First, are these two expressions "I feel like to .." and "I feel like ..ing .." correct? So, What's the meaning of them? And what's the difference between them?

The transformer rating is given in kVA, but the load connected is always considered in watts. Why? Eventhough, the load active power is represented in watts it has some reactive power, right? Is the total power consumed by load (active...

I do not know whether the usage of outright is correct. Not having found this structure on Google search engine, I'm curious about it.

I have a lot of files named like this: DOS1, DOS2, DOS3, DOS4, ..., DOS128. Each file contains four columns (first column is the same) with numbers, like this: DOS1 is: 33 12 1 2 16 32 8 1 9...