Questions tagged [simulation]
Simulation is the imitation of some real thing, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system.
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Temperature of a Lennard-Jones system
Are the formulas used in getTemperature() and setTemperature() correct?
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Minimalistic implementation of Leapfrog integration algorithm (2)
Please review this C++ listing of an implementation of Leapfrog integration.
This C++ listing is rewritten according to this review.
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Counting number of time frames in a simulation trajectory file
I have written a function in c++, which accepts an "ifstream" object (file) to read from and a string to match a header token in the file. This way I am counting how many times a token ...
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Flowers in the Window: An Exercise in Using Classes and Objects in Rust
The Problem
As part of my doomed efforts to learn Rust, I decided to get to grips with how the language handles classes and objects. But, instead of taking on some well-known exercise, I thought it ...
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Molecular Simulation: PBC using the Ewald Summation technique
The following is a Rust implementation of polymer simulation where the PBC(periodic boundary condition) has been implemented using the Ewald Summation technique.
Can you review the code?
Is the PBC ...
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Molecular simulation: Minimum Image Convention
Can you review the following code to check to see if the Minimum Image Convention is properly implemented?
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Simulation: Find a waiting queue order that minimizes the total waiting time - Java
Intro
Suppose we are given a queue of waiting times \$\langle t_1, \ldots, t_n\rangle\$. The first "person" \$(t_1)\$ leaves the queue immediately. The persons \$(t_i), i > 1\$ all have ...
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Python Logic Gate Circuit Simulator [closed]
I have recently become interested in simulating logic circuits because of a electronics class at school. I have created a functioning simulator for logic gate circuits in Python. My implementation ...
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Means square displacement (MSD)
I have written a code to calculate the MSD of some molecules. The code averages over multiple time origins (sliding time window) and over all the molecules. I have also made it do one extra thing: do ...
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Simulation of a real capacitor to calculate its capacitance
The goal is to simulate a real flat plate capacitor in 2D. The potential of the armature is fixed to +V and -V, on the edges of the simulation cell the potential is zero. Between the plates of the ...
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Smoothed Particle Hydrodynamics in Rust
So I'm simultaneously learning both Rust and Smoothed Particle Hydrodynamics.
I've been using this video from AMD as a reference and the provided smoothing kernels.
At this stage, I've not optimised ...
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Bruteforce proof of an arithmetic expansion scheme expression in array lists (Java)
Given a list of, say, integers, one way to implement such a list is to rely on an array under the hood. When we are adding elements to the array list, we might need to make the internal array larger. ...
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Simulating a toilet seat usage in Java - follow-up
(See the previous iteration.)
This time, I removed the stuff I don't need in my demo runner. Also, I consolidated some code that seemed DRY to me.
Simulation rules
When a female arrives, she ensures ...
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Simulating a toilet seat usage in Java
(See also the next iteration.)
I have this small simulation program simulating a toilet seat. The toilet seat may be in two positions: up or down. If a male arrives to the toilet to urinate, and ...
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I made a webpage that simulates sharks eating fish in the torrid world of Wa-tor
I've been self-studying HTML/CSS/JS. I read about Wa-tor. It's a population dynamics simulation which simulates fish and sharks breeding and predating. This seemed cool so I decided to implement it....
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Traffic simulation GUI: an exercise in concurrent programming using threads
To avoid a code dump I have removed most of the code and left the first few lines of constructors and methods and anything relevant. Full code at the bottom.
The purpose of this code is to use threads ...
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Membrane protein diffusion in different confinement models
I am a junior Software Engineer, C++ is usually my main jam but I started picking up Python for a research project I am doing in college. I am eager to learn as much Python syntax, tricks, best ...
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Simulation of sand particle collision
I am making a module that allows you to create sand and simulate it. I have successfully done this, but it runs very slowly. I need this to be able to simulate at least 1000 particles, at a fps higher ...
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plotting Monte Carlo Simulation from excel sheet
I have created the following code:
Option Explicit
...
thadaniel
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Estimate an average duration of every game state in a football match given implied goals for home and away teams
What my program does
I'm trying to estimate for how many minutes in average a football(soccer) match will be in different game states depending on implied goals of both teams.
Problem domain
For our ...
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Finds a moving target within a given space
https://youtu.be/XEt09iK8IXs?t=1264
Ben Awad did a mock interview with a React developer, and asked this question. There are a set of 100 holes (0-99). A rabbit is located in one of these holes. Every ...
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Frozen yogurt shop simulator
I made this project that simulates a frozen yogurt shop, where you can pick your flavor, toppings, and sauces and then pay for it. I'm a beginner at python and this is my first project. I don't even ...
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Heston model implementation in C++
I have implemented an option pricing algorithm following the Heston model. The simulation involves specifying the number of simulations, then generating a discretized path for each simulation (code ...
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Electronic circuit logic gates simulator
I've seen a lot of C++ simulators implementing logic gates, but absolutely all of them use the wrapped bitwise operations of the programming language itself. I have tried to omit the use of a bitwise ...
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Python implementation of a Galton board simulation
I watched a YouTube show the other day in which a variant of a Galton board is used to make a random selection from a range of movies that will be reviewed in that show. In contrast to a standard ...
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Coin flip streaks in Python
Below is the wording from the problem in Automate the Boring Stuff book. The bold text leads me to believe that I should be checking for a streak and not multiple streaks within each experiment of 100 ...
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Percolation threshold simulation using C++
I am studying Algorithms by Princeton University. The first week assignment is to simulate percolation by using Java.
https://coursera.cs.princeton.edu/algs4/assignments/percolation/specification.php
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High performance physics simulation - core class design
Below is some stripped down code from a physics simulation. The classes Vector2, Line and ...
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Barnes-Hut \$n\$-body simulation (3D) in C++
I have implemented the Barnes-Hut algorithm for \$n\$-body-simulations (in this case "sort-of" 3D-gravity - see below). I'd appreciate any comments for improving my code (especially ...
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Plants vs. Zombies simulator
I am making a pvz simulator. We have a game board with 1 = peashooter and 2 = zombie:
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Robotic swarm simulation: aggregation
This program simulates the phenomenon of aggregation of a swarm of robots with no cooperation between each other and each robot following a very simple rule:
The velocity of this robot has a random ...
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Conway's Game of Life in C++ with a Board Struct
I made the game of Life in C++ for a highschool class project. The website we're using doesn't have an autograder for C++, and my programming teacher doesn't really know how to program... so I'd love ...
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Monte-carlo simulation code - simple exercise
I created a quick monte-carlo simulation which seems to do what I want (simple version below). The code basically simulates a Poisson distribution, say this results in a simulation of ...
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Path of a particle in a non-uniform B field
I have completed my project which simulates the path of a particle trapped in a device known as a magnetic mirror. I would like your thoughts and improvements on my implementation.
Here is the code:
<...
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Quickly update, clone, and iterate ball simulation
What the program does: I have made a program that simulates a ball in an area made of triangles and many optimizations because it's for high-performance ball path simulation (technically ball path ...
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The python code simulates an environment of a disease and calculates how many people get infected
The python code simulates an environment of an X number of persons with an Y number of places they can go to, puts the persons randomly in the places and calculates how many persons get infected, die ...
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Solving the Knapsack Problem With a Genetic Algorithm Simulation in Python
I was watching Computerphile's video on using genetic algorithms to solve the Knapsack problem, and I decided to give it a whack.
For anyone running the code, the ...
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Simulating disease spread in a population
I am trying to build a model that allows me to estimate the spread of disease in the population. The setup is similar to the SIR model, with the difference that this model includes the stochastic ...
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Monty Hall simulation - OOP
I mainly write code for data analysis so don't think about or use OOP at all on the day job. I thought I'd have a go at a simple Monty Hall simulation in an object-oriented style to figure out how it ...
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Simulate transmission spectrum of extreme ultraviolet laser pulse through laser-dressed finite sample (Python Version)
I am currently participating in research on transient absorption spectroscopy and four wave mixing. In the experimental design, an extreme ultraviolet (XUV) laser pulse and infrared (IR) laser pulse ...
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MatLab: Plotting Output Electric Field Spectrum
Goal
This code combines two matrices, diagonalizes that matrix, and finds the right and left eigenvectors, right and left eigenvectors are normalized with respect to each other, then it is multiplied ...
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Simulate transmission spectrum of extreme ultraviolet laser pulse through laser-dressed finite sample (MATLAB version)
I am currently participating in research on transient absorption spectroscopy and four wave mixing. In the experimental design, an extreme ultraviolet (XUV) laser pulse and infrared (IR) laser pulse ...
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C# Coffee Machine
I saw this post and tried to do my attempt. This is the requirement of task:
Design a coffee machine which makes different beverages based on set
ingredients. The initialization of the recipes for ...
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Finding number of possible arrangements of books on a shelf with a Monte-Carlo approach
The Problem
I am trying to determine numerically how many possible ways a number of books can be arranged on a shelf. Specifically, there are x3 categories "physics", "sci-fi", and ...
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Python Genetic Algorithm Implementation
I've made this to pick the LQR parameters for my self balancing robots simulation. So to break down what I have done,
Randomly Create Population
I create a random population. The population is a list ...
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From Hummingbirds to Ornithopters: Simulating the Aerodynamics of Flapping Wings
Ptera Software
A Flapping Wing Aerodynamics Simulator Written in Python
Motivation
About a year ago, I became fascinated by how animals fly. As an aerospace engineering student, it surprised me that ...
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Discrete event simulation framework for discrete times in Julia
I would like to receive constructive feedback on my simulation framework (this is for my thesis work). I have no formal background in programming, and I am wondering if there is a more effective and ...
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Improving performance for social network simulation program
I'm an undergraduate student with little to no experience in formal computer science or coding, and I specialise in quantitative social science research. Our professor asked us to fabricate some ...
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Optimize narrow phase contact detection for phyiscs simulation code
I'm trying to optimize the narrow phase of the contact detection in my code. I'm using OpenMP for multithreading.
That is the starting code:
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