Programming Definition and 1000 Threads

I am a retired engineer that still is interested in physics, mechanics, programming, designing, experimenting, prefering the cases where these disciplines are closely related. I worked my whole life at the same institute in the Netherlands, but over time in different functions. I started with...

Calling all COBOL geeks........ I have never used COBOL. I wonder about the latest claims of waste fraud and abuse made by Trump/Musk about 150 yr old recipients of government largesse. Talking heads claim that, in fact, COBOL actually defaults birthdates to 1875 as an error code . I would...

All day I have been trying to find a method of finding the difference between two input (body of text), and get the difference but in order. I have tried breaking down the text into separate lines, then try to find the difference between both lines, but somehow this doesn't solve the problem and...

I will be beginning my Masters degree in Astrophysics in the coming months. My thread deals with 2 aspects: 1. I have a mandatory CS course & want to request suggestions/recommendations on reference materials, textbooks, tutorials etc. on how to tackle it. For context, my programming skills &...

Hello, I am currently learning Python as a basis for further studies in programming. The course that I took at college was quite basic, teaching us the basic concepts required for programming, and some web oriented concepts like data scraping, APIs, automated tasks using bots. As I delved...

Hello there! My name is Liru. I'm a 17 year old furry Uni student that is going into Computer Science. Currently trying to get a head start by learning as much as I can about Computer Science fields and programming. Any help is greatly appreciated!

I'm looking at a book called python crash course for beginners (eric mathes), does anyone have experience of using this book or any other book that you would recommend for learning python if not that, is there a specific course you'd suggest that isn't in book form? I'm completely new to...

hey everyone. I wrote a code in Fortran to calculate potential values or solve the Laplace equation inside a cube according to the boundary conditions mentioned in the code. this is my code: program laplace_cubic implicit none REAL*8 :: LX, LY, LZ, DELTA, MAX_ERR, ERR INTEGER :: NX, NY...

Hi I want to give an introduction of programming to my grand daughter who's going to college next year. She never learn any language. I want to play with Audino Kit with her. It's mostly C++. But it's too difficult for her to learn as first language and she doesn't have time as she's still very...

Is there an existing ray trace program that can trace planar light rays through this monocentric, model lens? Parameter values are given above. Input ray angles are all zero. Does some program give the output ray angle values at the second surface? How about for any arbitrary ray incoming to...

I want to create a program that can type and click for me on any Windows app without access to the source code. This would save a lot of time doing boring and repetitive tasks. Is this possible?

In case you're living in a cave or under a rock, I just wanted to mention there's a modern alternative to Latex, which is apparently easier to learn and use. See https://github.com/typst/typst. Thoughts on it?

Hi Just want to know which of the MPU I should learn that will be around and popular for a long time. I bought the Elegoo with ATmega328P. Before I invest time learning how to program it, I want to make sure I choose the right one. Thanks

I wrote this in response to a recent thread start here which is now deleted, but this is close enough to a common question that I don't think has been answered (recently) here, so here goes... A variety of services exist to create websites such as Wordpress.com, Squarespace and Shopify where...

I'm surprised that automatically programming is coming to me. It blows my mind. I could not think of any logic in the past months and now I am able to solve puzzles in programming. But the toughest part is I forget how I solved the problem too quickly. For example, the blackjack program. I...

There's stuff on here relevant to my day-to-day, which means I may also be able to contribute. I'm primarily focused on programming in C, C++, Python and Perl. Nothing now, just introducing myself - hello all!

var dict = { 1: "I", 5: "V", 10: "X", 50: "L", 100: "C", 500: "D", 1000: "M", }; ordinary_literal = Number(prompt("Enter the value of year in foramt 2010")); //2010 as input let roman_value = ""; let minDifference = Infinity; while (ordinary_literal > 0) { for (var key in dict)...

There's a lot here and i can cut it down if need, but im wondering how one access's vectors vec_y and vec_x (which initialize in the constructor) in the rkf function? See, ultimately id like to have the class perform the rkf function which modifies vec_x and vec_y (according the RungeKutta ode...

I want to make a program that takes strings as input. eg: physicsforums. And writes that using x'es. example c of physicsforums should look like this. I've written the program for this. #include <iostream> using namespace std; int main() { int size; cout << "Enter the size of the...

Fizz Buzz has been discussed in many online blogs are articles, in a multitude of programming languages. It has been widely used as a screening device for those aspiring to obtain developer positions. The job candidate is asked to write some code to print the numbers 1 through 100, with "Fizz"...

Hi everyone I'd like to detect collisions between a circle and a floor. I have set them up as follows: The script runs fine (it's just a circle falling towards the floor), but nothing happens when the two objects collide. Does anyone know what I've done wrong?Thanks

I have a simulated data of charged particles in a magnetic field. I have selected clusters, each cluster contains a set of points(x,z) and I want to perform RK4 between the first and second clusters and fill the positions in a histogram. I have selected the clusters with the initial...

For eg: Currently I am trying to learn bash shell scripting, text processing using bash etc. But the problem is I don't think I can learn it. Why? Because I don't know programming. In particular, problem solving. I don't know problem solving at all. I try my best but I fail. In the past, I tried...

I am a Senior in High School looking to go to college for Computer Science. Since Freshmen year I have been learning Front End Development (HTML, CSS, and Javascript), albeit somewhat slowly and staggered due to school getting in the way and whatnot. In the past year, I have learned some more...

Was wondering if anyone knew of any good resources with programming challenges akin to the website "Project Euler" (about page found here). To be more specific, I'm looking for something consisting of problems centred around physics topics that would require some level of problem solving and...

Hello, i am programming pga970evm module and the core is of arm cortex m0. the program what i have is building succesfully , but while debugging it is stuck or halting in reset (reset_handler) and not comming out of it (startup code). i will provide screen shot of debug page. another thing is...

I used to enjoy writing little programs in BASIC when it was included in Windows. I guess it hasn't been included for a long long time. Is there a BASIC package available for download that would run on my Windows 11 PC?

Hello, i am programming my fpga with certain logic. With the sof file the logic is working fine and correct. but when i am programming pof file i am getting error. (programming is successful, but doesn't work as per the logic).

TL;DR Summary: advices for struggling programming learner I had access to world's best resources to learn books, tutorials, blogs, youtube, udemy etc. I had access to forums like this to get help and support but still this was tough for me.People say do projects to learn but I really don't...

The physical world is highly parallel; many things are happening side by side simultaneously. This is true not only at the macroscopic scales that we can see but as far as we know down to the subatomic scales. This is referred to as the principle of locality [1], which states that an object is...

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...

Please help me to find what my mistakes are in the following java program.

I got the idea for problems like factorials or finding sum from 1 to n, where there's a pattern visible. Like this: Source:https://99x.io/blog/recursion-is-not-hard-here-is-the-right-way-to-think I got it for things like addition, subtraction, division, multiplication of two numbers as well...

I've finished self-learning till arrays. Learning about strings today. My level isn't that high yet that I will be able to solve DSA problems in leetcode and codewars imo. So, I want some exercises. If some of you have access to university's assignments and are eligible to share it, please share...

HELLO ALL, First off, my apologies if this topic is redundant, but I was wondering which programming language is widely applicable to a physics career. What positions in a Physics related career use what specific languages? What is one's best option if one is pursuing a research position versus...

I have learnt about the power iteration for any matrix say A. How it works is that we start with a random compatible vector v0. We define vn+1 as vn+1=( Avn)/|max(Avn)| After an arbitrary large number of iterations vn will slowly converge to the eigenvector associated with the dominant...

We have threads on lame jokes and science jokes. But then, we also have a thread on bad math jokes. So, why not create one specifically for programming jokes? Let me start:

Okay so far I have come up with the following: The objective function is: 30LADA + 40LAHO + 50SADA + 40SAHO + 110DANY + 125DACH + 105HONY + 115HOCH (to read this please see the table above as I have just used the first two letters of each except NY which I have represented by NY). In these I...

So far I have figured out the following: maximize 0.02x1 + 0.01x2 +0.06x3 + 0.07x4 subject to: xi <= 200,000 xi >= 24,000 x3 <= x2 +x4 x1 >= x3 But when I try to solve this in solver, I get an error which means my contraints must be wrong. Any suggestions on what constaints to put?

Hello, I an clear on how the modulo operator ##%##, also called the remainder operator, is used in programming. It gives the remainder of the integer division. For example, ##5 % 2 = 1## because the divisor 2 fits 2 wholly times into the dividend 5 leaving behind a reminder of 1. ## 6% 3 =0##...

Let's say I have an algorithm ## ALG_A ## written in language ##A##, and I wish to call algorithm ## ALG_B ## written in language ##B## through ## ALG_A ##. What are some ways of achieving this in implementation? For example, say I want to calculate stuff in C language and provide this...

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I do not know much about programming. I have used Mathematica, and some Python in the past for very specific problems. Any book recommendations for one wanting to learn programming in order to solve problems from Project Euler. I am familiar with number theory, but not with programming.

Long ago I studied one and only one beginning programming course. The only requirement or prerequisite was a couple of remedial Mathematics courses (Algebra 1 and Algebra 2, and maybe Trigonometry). No other computer courses needed as prerequisites. With much struggling, I earned a C. The...

I am asking this question because I am trying to learn skills that will make me more appealing in the job market. Ideally, the promise of stable work and what-not should be enough. But I find it difficult to maintain interest in learning how to code. I do not know if it is the scarcity of...

Hi PF! Take a deck of cards. 26 are red and 26 are black. You draw cards randomly without replacement: if the card is red you gain a dollar, if black you lose a dollar. What's the expected value? My thought process was to look at simple cases and build to a 52 card deck. We know if ##r=0##...

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Whenever I ask what are the potential jobs for math majors, it's related to data science or software engineering where being proficient in programming is required. I notice that it's generally okay for programmers to be bad at math, but math majors are usually expected to be good at...