Writing Definition and 712 Threads

I have been interested in writing a book for a while and recently got to talk with a book agent to get some understanding of how publishing might work for me in my specific case. This has caused me to rethink some things. The book I want to write is about what it means to biology if you...

Are academic ghost writers a thing? I've written a paper on the fine tuning argument, defending naturalism and while the arguments are sound (I would say that) it's not really up to a publishable standard. I worked with an editor but he really only did some copy editing, so I was wondering if...

In the past was enginners/students draw directly with rapidograph or first with mechanical pencil and after that redraw everything with rapidograph? Is rapidograph good for writing or he works only in vertical position? Why rapidograph if we have ozalid machines?

I have a story idea involving MWI and a world where the evolutionary branches that would produce octopuses and mammals split 500+ million years ago. A group of conspiracy theorists think cephalopods became the dominant species in some worlds and want to "visit," and it might be possible. I want...

the protocol for how to refer to the person that the narrative is going to be told through? For more context, the overarching narrative follows different people. The person's name has already been established earlier in the story. Moreover, the person will regain her memory during the last...

I feel compelled to note a valuable new article in the magazine Science about the task of writing scientific papers in English when your native language is not English. The article is written by a Chinese scientist who did his PhD in the U.K. The basic message is to keep it simple. Use short...

It is easy to see that a matrix of the given form is actually an unitary matrix i,e, satisfying AA^*=I with determinant 1. But, how to see that an unitary matrix can be represented in the given way?

We are required to find every way in which we can write 112 as x2-y2. I already found one way using a 2≡b2modN. The values 112≡32mod(112) work and we can factor it as 14x8=112, I am confused how to approach this further for determining other values or would I just stop here? If I do test more...

logyx + logxy = 3/2 Solution $$\begin{align*}\log_{ y }{ x } + \log_{ x }{ y } &= \frac{ 3 }{ 2 } \\ \log_{ x }{ y } &= \frac{ \log_{ y }{ y } }{ \log_{ y }{ x } } \\ \log_{ y }{ x } + \frac{ 1 }{ \log_{ y }{ x } } &= \frac{ 3 }{ 2 } \\ \left(\log_{ y }{ x } \right)^ { 2 } + 1 &=...

cpu 8086 segment code ..start mov ax,data mov ds,ax mov ax,stack mov ss,ax mov sp,dno mov es, ax start_2 mov ah, 0x0a mov dx, buffer int 21h cmp al, 0 je print_lines inc word [count] mov si, buffer mov di, line mov cx, 100...

What are the rules for writing a good Lagrangian? I know that it should be a function of the position and its first order derivatives, because we know that we only need 2 initial conditions (position and velocity) to uniquely determine the future of the particle. I know that the action has to be...

Hi, the task for me is writing a worksheet about Physics experiments in the classroom with a strong emphasis on Inquiry Methods. If you have any suggestion about it (web, courses, people in the field), I'd be very grateful to hear from you. In the meantime, have a safe day.

I just learned about pseudocode, and I am confused about how I should use/write it. For the question, 1: sum ← 0 2: For i in range (3) do: 3: sum ← sum +max(A) 4: remove max(A) from list A 5: return sum The following is the kind of pseudocode I want to write. I have several...

I understand that a homotopy is a continuous deformation. The only thing I really remember is something in my notes like this: F(s, 0) = a(s) for 0≤s≤1 and F(s, 1) = a * Id(s). Basically I have to construct some sort of piece-wise function such that I go something like two loops half of the time...

I have a couple general questions regarding writing proofs: Do proofs typically fall into being one out of all of the rules of inference (page 6-7 on this pdf) or is it that generally, most proofs may categorically qualify within a very small subset of the rules of inference (say “many common...

The axioms: My work: Extension:$$\forall x\forall y,\,(x=y)\iff(\forall z,\,(z\in x\iff z\in y))$$ Empty Set:$$\exists x|\forall y,\,\neg(y\in x)$$ Pair Set:$$\forall c\forall d,\,\exists e|(c\in e)\wedge(d\in e)\wedge[\forall f,\,\neg((f=c)\vee(f=d))\implies\neg(f\in e)]$$ If you consider any...

The final wave function solutions for a particle trapped in an infinite square well is written as: $$\Psi(x,t) = \Sigma_{n=1}^{\infty} C_n\sqrt{\frac{2}{L_x}}sin(\frac{n\pi}{L_x}x)e^{-\frac{in^2{\pi}^2\hbar t}{2m{L_x}^2}}$$ The square of the coefficient ##C_n## i.e. ##{|C_n|}^2## is...

Hi all, I am hoping someone can help me understand a PDE. I am reading a paper and am trying to follow the math. My experience with PDEs is limited though and I am not sure I am understanding it all correctly. I have 3 coupled PDEs, for $n$, $f$ and $c$, that are written in general form, and I...

What does ##S=\partial V## and ##C=\partial S## signify, usually I have only seen books writing ##C## when evaluating a line integral over a curve ##C## and ##S## when evaluating a surface integral over a surface ##S##. Could someone clarify what ##\partial S## and ##\partial V## mean?

Hi, there. I am starting writing my first paper now. But I do not feel very well. First, my brain is almost empty when I start to write the introduction section. I feel I have many things to say but they disappear when I really start to type. I am afraid the structure of this section will not...

how do publishers and editors write and make mathematical function graphs and format their textbooks... ? what softwares and programs do calculus or chemistry publishers use to create their textbooks ? Thanks

Hey guys! Sorry if this is a stupid question but I'm having some trouble to express this charge distribution as dirac delta functions. I know that the charge distribution of a circular disc in the ##x-y##-plane with radius ##a## and charge ##q## is given by $$\rho(r,\theta)=qC_a...

I took a stab at the question, but I don't think I did it right. I know that Work = Change in Energy thus, Work = final energy - initial energy Because there is no energy at the final position, then final energy = 0 (I'm not sure if this is correct). So I got the equation W = 0 - (1/2kA^2 +...

I have a code like from random import randint from string import ascii_lowercase file = open("data.txt", "w") numbers = [] for j in range(26): # generating a list of random number random_num = [randint(0, 7) for i in range(120)] numbers.append(random_num) # matching these numbers...

I've attempted and I can retrieve a 0 when the first input is greater than the second using BRP. I can't seem to get the output of 1 if the first input is equal to the second input. I also don't get a 2 output with the first input being less than the second. I also have no idea how to loop a...

Summary:: Ideas for a novel I want to begin writing. Brainstorming ideas and need help with a certain concept. Any help is appreciated! Hello to you all, this is my first post, and I Google searched this astrophysics forum because I thought it might be a good place to begin asking for advice...

Do you consider writing a program that takes 3 integer inputs and orders them in ascending order (accounting for same numbers) difficult? You can only use if statements (if, else if, else). I know there is some thing called "sort" that does the tedious work for you but do you find this simple...

I'm working with Python modules at the mo', and I am having trouble trying to decide how best to include supplementary material that is accessed by my module, but not necessarily a part of it. The program works alright when accessing it from the IDE, but it fails to recognize the files when I'm...

Some people say f is the function and some say f(x) is the function. f and f(x) are often used interchangeably. I have seen in many textbooks, sentences such as "Let f(x) be a function ...". But as we know that f represents our function then why it is given "f(x) is a function". i am confused...

Stupid question. Is that possible form the style and language viewpoint to write such things in the article: is the environment "Fact" ok?

Hi, I was practicing writing a paper in MS Word 2019 and need your help with few important points. I understand it's little too many queries but they are all related so I thought asking them together would be a better idea. Thanks in advance! 1: Suppose once I was done adding all the...

It's only a small PF shout out for my third novel, Handwavium, because it is more techno thriller than pure sci-fi story, so it didn't ask much from the collective brainpower of the forums. Still @Vanadium 50 and @stefan r gave their assists with gravitational wave triangulation, for which I...

Hi I have a funky problem I have been working on for over a day, it is supposed to be quite simple, but I have funny result. What the program does is to pick out one of the five records(of structure) stored in the file, modify it and store back into the file in the same position. It supposed to...

Let P stand for Alice is in the room. Let Q stand for Bob is in the room. (P ^ ~Q) v (~P ^ Q) Either Alice is in the room and Bob isn't or Alice isn't in the room and Bob is. Would this be acceptable?

Which type of letters is rule to use in aero-engineering when hand writing? All capitals-block letters, cursive, upper and lower case-block letters. .?

Equation 1: Where t1=time spent on motorway Where t2=time spent on country roads t1+t2=4 Equation 2: Using distance = speed * time 200 = 70*t1+40*t2 Rearrange equation 1 in terms of t1; t1=4-t2 Substitute the rearranged form of equation 1 into equation 2: 200=70(4-t2)+40t2 200=280-70t2+40t2...

Hi. Any fans of DARK here? This show was mind blowing. The feel of the show may be to heavy for some, especially in the beginning. So it may not be your style. But if you like that atmosphere, the series is truly amazing. The writing is on a whole new level. If you haven't watched it, I...

I'm writing a science fiction short story about an ocean world with indigenous life, colonized by humans, and I want to check some of my "facts".1. Given the possibility/assumption of panspermia, spreading hydrocarbons and possibly even simple enzymes between systems, is it plausible for a...

Is there a new code format for writing equations here? I usually use $$ or ## to delineated code, but that doesn't seem to work anymore. Thanks.

I'm writing a simple script that writes to a csv file. When ran from console it works fine. When ran with cron, it doesn't write. No errors in the log. All files and folders are 777. The cron is active and running. What am I missing?

Introduction: I am writing a Matlab program that solves the Kepler problem for any Elliptical, Hyperbolic, or Circular orbit. Given an initial position vector, velocity vector, find the position vector and velocity vector after some given time. I am not doing this for any class, I have been...

I have bolded the text. I have two problems: Page fault occurs if the page is not in memory but the above text says that (a)the page fault occurs at the time of modifying or writing the page? I can’t understand that. (b) Also I can't understand the text “, allowing the operating system to set...

I haven't been on PF that long, and I mostly post in the Science Fiction section, but I have noticed in the "Writing and World Building" forum that few of us loop back after asking for help to let people know, "My novel is done". So, just to let you know, my novel is done and is live in the...

One of my novel's leads is a physics student. In the following lab: what would students learn about waves? What kind of measurement results would they get (not specific numbers, but, for instance, proportions of node lengths to rope lengths)?

Edited after post below: Hi, I need to show that the square of the expectation value of an observable takes a certain form in Dirac notation. I know in wave notation that the expectation value is a sandwich integral which looks like this: ##<A>=\int_{-\infty}^\infty \Psi^*(x) \hat A \Psi (x)...

Curious on thoughts here about writing with negative numbers, i.e. do you write A) xxx declined -2% or B) xxx declined 2% this is for the general public, if that makes a difference Argue about this at work, have not seen any style guide addressing this.

Hello, I am looking for advice on where to go to find funding opportunities in the hard sciences, and how to go about the application prcess once a source is identified. I know that is pretty general, but my knowledge is at the beginner's level. I would take links to websites that talk about...

Michael Coe who broke the code of Mayan writing has died of a stroke. Until his work, Mayan writing was not understood and many thought they were just pictures. This kind of work was limited by lack of material as most examples of Mayan writting was destroyed by Spanish Conquistadors. He...

I started reading QFT recently. With respect to the Dirac spinors, I was introduced to Feynman's slash notation: OR There are sites which say how this can be inserted in LaTeX documents. I checked out the LaTeX guide of PF, but found that it is not listed there. Writing...

I have attached the problem and I have also taken a photo of my working for it, it seems my answer is wrong. I would be grateful if you could please check where I have gone wrong. Thanks a lot.