### 2 How to deal with different screen sizes when your theme is all about design

EnexoOnoma 1 hours 27 minutes ago. 1 answers, 0 views website-design psychology
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...

### 1 Filter csv file based on extended column values

Sri today at 00:24. 1 answers, 0 views text-processing awk csv-simple
I have the following csv file: ID,PDBID,FirstResidue,SecondResidue,ThirdResidue,FourthResidue,Pattern RZ_AUTO_1,4tov,1404,1405,1518,1519,CG/AA Canonical ribose-zipper RZ_AUTO_2,4tov,1405,1406,1517,1518,GU/AA Naked ribose-zipper RZ_AUTO_3,4tov,1043,1044,1047,1048,CC/GA Naked ribose-zipper RZ_AUTO_4,4tov,1556,1557,1514,1515,CC/GA Naked ribose-zipper RZ_AUTO_5,4tow,130,131,99,100,AU/CA Canonical ribose-zipper RZ_AUTO_6,4tow,766,767,1524,1525,AA/CG Canonical ribose-zipper RZ_AUTO_7,4tow,131,132,98,99,UC/AC Canonical ribose-zipper I need to go through each row and print rows where the...

### 7 What are the fundamental problems of being in a world with only 2 spatial dimensions?

Rahul Bansal 06/24/2018 at 18:33. 3 answers, 0 views spacetime spacetime-dimensions popular-science
I was reading through Stephen Hawking's explanation of 2-dimensional space. In that he mentioned that it will be very difficult to design a living being that could exist only in 2 spatial dimension. What are the fundamental problems arise with...

### 5 Cambridge Tripos 2015: Zorn's Lemma Proof Requiring Axiom of Choice

Daniele1234 06/24/2018 at 14:55. 2 answers, 270 views abstract-algebra set-theory axiom-of-choice
I was doing a Cambridge Tripos, and the task was to prove Zorn's Lemma and show where the Axiom of Choice was assumed and how it fit into the proof. Reading a paper, I found this: To prove Zorn’s lemma,...

### 2 If someone needs to learn how to say “Don't touch” using the formal command, which should be used: “No se toca”, or “No se toque”?

Lisa Beck 06/24/2018 at 12:12. 1 answers, 70 views imperativo
I recently came across the phrase "No se toca" over at Reverso. Had I not seen so many instances of this (both at Reverso and in a regular Google search), I would have thought that it was some sort of...

### 4 Shall I avoid to use my index finger on non-barre chords?

ShinDarth 06/24/2018 at 11:37. 4 answers, 336 views guitar chords fingering
I'm a guitar beginner who knows the basic, non-barre chords and is now learning some barre chords. I've noticed that, usually, barre chord shapes are just like non-barre chords but shifted. For example, the B major chord is exactly the...

### 4 Can I use a Planeswalker's ability when I took over its control this turn?

winklerrr 06/24/2018 at 10:48. 1 answers, 188 views magic-the-gathering
My opponent controls a Planeswalker and uses its ability. End of turn. I play In Bolas's Clutches and target that Planeswalker. It comes under my control (right?). Can I now use this Planeswalker's ability or do I have to...

### 2 How do we recover units of force from units of gravitational potential?

eurocoder 06/24/2018 at 10:48. 4 answers, 286 views forces potential potential-energy dimensional-analysis si-units
The gravitational potential $G_{pot}$ has units of energy per unit mass: $$\bigg[\frac{J}{kg}\bigg] = \bigg[\frac{kg m^2}{s^2kg}\bigg] = \bigg[\frac{m^2 }{s^2}\bigg].$$ The gravitational force is $F = - \nabla G_{pot}$ so this would lead me to believe that unit-wise, due to...

### 2 bodegraph two vertical axes

Faceb Faceb 06/24/2018 at 09:28. 2 answers, 29 views graphs bodegraph
The manual of bodegraph shows how to construct the grid in dB, see With MWE (from manual) \documentclass{article} \usepackage{bodegraph} \usepackage{tikz} \begin{document} \begin{tikzpicture}[yscale=2/30,xscale=7/5] \semilog{-2}{3}{-20}{10} \end{tikzpicture} \end{document} But how can I construct something like this ...

Stoner 06/24/2018 at 09:18. 2 answers, 101 views table-of-contents thesis books
I'm trying to add a table of contents to a template which I found on Sharelatex.com, but upon adding \tableofcontents, I obtain the error "! LaTeX Error: There's no line here to end." Anyone has a clue as to what...

### 7 Why didn't Saturn V have grid fins? Long March and Soyuz do!

uhoh 06/24/2018 at 09:06. 1 answers, 374 views grid-fins
From the question What are these four “waffle-like” structures on top of the Long March 2F just launched? and @RussellBorogove's answer there we can see that the Long March 2F carrying the Shenzhou-11 crew had grid fins. above left: Screen...

### 4 Algebra and matrices.

Math Tise 06/24/2018 at 08:47. 1 answers, 298 views matrices algebra-precalculus matrix-equations
Q. Solve for $x$, $y$ and $z$ if $$(x+y)(x+z)=15,$$ $$(y+z)(y+x)=18,$$ $$(z+x)(z+y)=30.$$ Solution: I expanded each equation above as : $$x^2+xz+yx+yz=15, \tag{1}$$ $$y^2+xz+yx+yz=18, \tag{2}$$ $$z^2+xz+yx+yz=30. \tag{3}$$ Then I subtracted $(1)-(3)$, $(2)-(1)$ and $(3)-(2)$; so I got the equations...

### 5 Explain this convergence among Pythag triplets

Jerry Guern 06/24/2018 at 08:06. 2 answers, 77 views pythagorean-triples
Why do the ratios of successive values of integers $a$ and $c$, where $a^{2}+(a+1)^{2}=c^{2}$, appear to converge to $$\frac{a_{n+1}}{a_{n}},\frac{c_{n+1}}{c_{n}}\rightarrow3+2\sqrt{2}$$ I rigorously generated all the {a,c} pairs where $a^{2}+(a+1)^{2}=c^{2}$ for $a<10^6$: {3, 5}, {20, 29}, {119, 169}, {696, 985}, {4059, 5741},...

### 9 “Pillars of Baikonur” What is the purpose of the hundreds of short, white posts near the Baikonur Cosmodrome launch pad?

uhoh 06/24/2018 at 07:13. 1 answers, 196 views launch-site russia identify-this-object baikonur-cosmodrome
The caption given in the third image included in the Space.com page Expedition 56: The Space Station Mission in Photos reads as follows: At the Baikonur Cosmodrome launch pad, remote-controlled cameras are set up to capture every angle of the...

### 6 Fifa World Cup 2018 Group F Qualification Scenarios

QO23 06/24/2018 at 05:36. 1 answers, 166 views football world-cup fifa tie-breaker
With Germany winning 2-1 against Sweden yesterday, the group F qualification scenarios have become complex. In the next round of group games, if Germany beat South Korea 1-0, Sweden beat Mexico 1-0. Then Mexico,Sweden and Germany will all have 6...

### 2 PowerShell - drive variable

Dinesh K 06/24/2018 at 05:05. 1 answers, 0 views powershell
Hello Stackoverflow users, I am a noob at powershell and this is part of my 1st script I am creating :). I am lost on how I would run a script that is dependent on a drive. I have script...

### 2 What is the true pinyin pronunciation for this radical?

Therissa Toussaint 06/24/2018 at 04:01. 3 answers, 73 views meaning pinyin radicals
I'm trying to learn a new method for learning and understanding chinese characters. So, I decided to start with memorizing every chinese radical. I'm use two different source but both wrote two different pinyin. Which one is right?

### 2 What is the relative maximum or minimum and the point of inflection?

Juliana Rodrigues 06/24/2018 at 02:55. 3 answers, 37 views calculus
$f(x) = ax^3+bx^2+cx +d$, determine a, b, c, and d such that the graph of $f$ has a extreme in $(0,3)$ and a point of inflection in $(-1,1)$. When is a quadratic I know that the formula $V=(\frac{-b}{2a},\frac{-\triangle}{4a})$ gives...

### 4 Trigonometric Sum around the Unit Circle

Leekboi 06/24/2018 at 02:27. 2 answers, 38 views geometry trigonometry summation vectors circle
I would like to prove the following, $$\sum_{k=0}^{n-1} \text{cos}\left(\frac{2\pi k}{n} \right) = \sum_{k=0}^{n-1} \text{sin}\left(\frac{2\pi k}{n} \right) = 0$$ This is equivalent to showing that if we have a regular n-gon, all of the vectors in $\mathbb{R}^2$ pointing to every vertex...

### 5 When transformer rating is in kVA, why load is mentioned in WATTS?

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...

### 12 Expand a dict containing list items into a list of dict pairs

If I have a dictionary containing lists in one or more of its values: data = { 'a':0, 'b':1, 'c':[0, 1, 2], 'pair':['one','two'] } How can I get a list of dict tuples paired by pair and iterating over c,...

### 3 Uncertain Meaning of Musical Symbol

Ryan Meier 06/24/2018 at 01:03. 1 answers, 120 views notation sheet-music
What is the meaning of the thick line with the 8 on top in above the photo? I have looked everywhere on the web, but can't find anything. Any help would be appreciated.

### 4 Tikz triangle with symbols

CSA 06/24/2018 at 00:58. 1 answers, 45 views formatting tikz-arrows
How do I change the A,B,C labelt to make them into math symbols? For example say I want to change A to read $\mathbb{A}$? \documentclass[tikz,border=3.14mm]{standalone} \usepackage{tkz-euclide} \usetkzobj{all} \begin{document} % preamble added by a rodent ;-) \begin{tikzpicture}[scale=2] \tkzDefPoint(0,0){O} \tkzDefPoint(1,0){Z} % \tkzDefPoint(-0.7,-0.1){A}...

### 3 Does identifying a magic item reveal to the character if the item requires Attunement?

Jeffrywith1e 06/24/2018 at 00:05. 2 answers, 49 views dnd-5e magic-items
Attunement rules state that a character can only be attuned to three different magic items. Is this intended to be knowledge about magic that a character is aware of? Or is this meta-knowledge for the mechanics of the game (like,...

### 1 Are 朝鲜冷面 (Cháoxiǎn lěngmiàn) from Korea (North and South) or only North Korea?

Becky 李蓓 06/24/2018 at 00:01. 2 answers, 69 views meaning-in-context food
In Tianjin, sometimes we see 朝鲜冷面 (Cháoxiǎn lěngmiàn) for sale: Breaking this down: 朝鲜 (Cháoxiǎn) = Korea or North Korea, depending on context 冷面 (lěng miàn) = cold noodles YouDao says 朝鲜冷面 translates to "Korean cold noodles". Question: Are 朝鲜冷面...

### 2 How to deal with others tourists taking pictures of my children?

le_daim yesterday at 22:42. 1 answers, 87 views children local-customs cultural-awareness
Disclaimer: I am not sure if this question belongs to this site or to interpersonal.SE. However, I only lived the situations described below when traveling and people taking photos were for sure also tourists. Recently, my family and I (two...

### 3 How does “solving” a game like connect four or tic-tac-toe work?

Janekmuric yesterday at 22:41. 2 answers, 27 views algorithms game-theory
To mathematically solve a game you have to prove, using various tehniques, that some player will win, lose or draw the game. Specifically I'm interested in solving games by brute force (trying out all the possible combinations). If I were...

### 6 How could this character fly?

Solo yesterday at 22:23. 1 answers, 289 views marvel marvel-cinematic-universe avengers-infinity-war
In Avengers: Infinity War movie, we saw Red Skull guarding Soul Stone on planet Varmir. We also saw that he was flying/ floating. Provided that he was a human, how could he do that?

### 1 Can I use an HSA to reimburse myself for expenses that would have been covered by my insurance?

bdesham yesterday at 21:26. 1 answers, 17 views united-states hsa

### Keyboard keys not working on my laptop

Gichkid yesterday at 12:50. 0 answers, 12 views keyboard
My SpaceEnter and Backspace keys are not working on my dell vostro laptop