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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Barrier Option Pricing using Python
This is my implementation of pricing an exotic option (in this case an up-and-in barrier option) using Monte Carlo simulation in Python.
I use numpy where I can.
On thing I'd really like to ...
2
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0answers
12 views
sorting overlapping shells in dynamical simulation - for loops vs array methods
I didn't know whether it was best to start with the general task I'm trying to solve, or the meat of the programming problem. They're both below but the former is rather long and solving the latter ...
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0answers
61 views
Monte Carlo simulation to price an Option in Python
In what ways can I make this code more efficient?
I haven't put in comments and descriptions yet. I need to do that.
Ideally, I'd like to make the S, v, r, and K user entered as I did with T. I'm ...
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1answer
44 views
Compute the probabilities of getting each of the possible sums when throwing 2 dice, n times
I'm struggling with some coding-inexperience. The code I've written below, is extremely inconvenient and ugly to look at.
My question to you is:
How can this be done more efficiently? The way I've ...
6
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3answers
110 views
Slot Machine Simulator with JAVA
I'm studying alone, so I don't know if I'm writing efficiently. Could this SLOT MACHINE SIMULATOR code be improved? How?
...
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2answers
67 views
Birthday Paradox Tester
I randomly decided to write a program that tests the Birthday Problem/Paradox.
The gist of the problem/paradox is that if you have a group of people in a room, how many people are required for there ...
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0answers
32 views
gradient vector for use in the optim function
I created the code below to parameter estimation of the Birnbaum-Saunders distribution, which most want is the implementation of the gradient, which was added to the code! I wonder if it is correct? ...
4
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3answers
184 views
Tic-Tac-Toe game simulator in Java
I've completed this Tic Tac Toe simulator in java and so far it's working. It's just supposed to generate a pre-played game and announce the winner. I'm required to use a 2D array and this is the way ...
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0answers
45 views
Simulation of reflected particles
I made a particle simulation in vanilla JavaScript. It can currently handle around 10000 particles (staying 58-60 fps on my machine).
For testing, controls are MB1, MB2, R, Z.
How can I make this ...
8
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1answer
112 views
Monty Hall Optimization in Python 3.5
This is for homework but the deadline is over and I know the implementation is correct because it concurs with the math. At this point I just want to check my implementation for potential ...
9
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1answer
500 views
ALOHA network simulation in Python
I'm currently studying the book
From Algorithms to Z-Scores: Probabilistic and Statistical Modelling in Computer Science
In the first chapter of the book the ALOHA network protocol is introduced as ...
4
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1answer
74 views
Multigeneration evolution simulator, graphing phenotypic change
I created an evolution simulator. It takes random chance and applies it to phenotypes of species. This was very much for fun, and I would love any input on:
Readability of code
Efficiency of ...
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4answers
2k views
Simulating a printer
I'm trying to recreate a printer in Java. I'm fairly new to programming so I'm using huge if/else blocks inside a single ...
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2answers
203 views
Betting strategy simulation
I lately got interested into betting systems, dice strategies and algorithms. I took some time to think about it and eventually ended up with an algorithm of my own.
Considering that I don't have ...
4
votes
2answers
149 views
Processing simulation data from power flow analysis
The intro is a bit long. If you're not interested, then please read the update, and have a look at the specific parts I'm highlighting.
I'm very interested in any improvements, but you can assume ...
5
votes
3answers
76 views
Statistical Analysis of X-Wing Game Dice
I was in a discussion about mechanics of the X-Wing miniatures game where we were discussing a couple of the ways to improve attacks and I put together this small C# console application to determine ...
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1answer
325 views
First time ATM machine program
I have created a gorgeous ATM machine program. It makes all other ATMs look like crap, if I do say so myself. What I would like is some sort of critique on what I've done:
Is there better syntax I ...
3
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0answers
64 views
Comparing three packet routing algorithms via simulation in Java
Inspired by my question
Simulating a random packet routing algorithm and printing packet statistics in Java
I decided to implement two more packet routing algorithms:
one that computes all the ...
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5answers
837 views
Benchmarks of various scientific programming languages for theoretical modelling
For a theoretical modelling course for biology students, I am trying to decide which would be the best technical programming language for doing evolutionary simulations in terms of elegance and ...
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2answers
71 views
Simulating a random packet routing algorithm and printing packet statistics in Java
I have this short program for simulating a random packet routing algorithm:
Packet.java
...
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1answer
268 views
Dice simulation and counting pairs
This is my first time putting a code together for Java based on my own so i was hoping if you someone would be kind enough to review and provide feedback or constructive criticism on this code.
The ...
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1answer
43 views
Income Simulation programifier
http://pastebin.com/7UqD0gwF
I'm looking for serious feedback on my first serious program.
This is a program to calculate PvZ income over time of sunflowers and sunshrooms on nighttime pool levels.
...
2
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0answers
49 views
Physical simulation of diffusion-limited aggregates
The following code generates Diffusion Limited Aggregates on a two-dimensional square lattice. Some of the code has been omitted (e.g. support for differing lattice types and dimensions) for code-...
4
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1answer
76 views
Virtual Lotto Task
I had the task to write a Lotto simulator. My program works as follows:
To start, the user can type in 6 numbers.
Then the winning numbers are randomly chosen.
The program then shows the winning ...
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0answers
50 views
Livelock simulation
I want to understand how Livelocks happen and also how to translate my thought in to working code. I have written the following snippet to simulate a livelock between two persons passing each other in ...
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2answers
112 views
Monte Carlo simulation of amoeba population
I wrote a simple Python simulation to answer the "Amoeba" population question posed here:
A population of amoebas starts with 1. After 1 period that amoeba can divide into 1, 2, 3, or 0 (it can die)...
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3answers
123 views
Hungry ant AI: any food here?
I'm working on a little AI to simulate ants (very basic). The full code can be found on Github. This function (in Ants.py) takes a list of Tuples containing ...
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0answers
74 views
PHP Lottery Simulator
I have a lottery simulator on my website that simulates you playing the lottery every week until your death and tells you how much you would have won or lost. It can take a custom number of balls and ...
3
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1answer
90 views
Sleeping barber problem in Erlang
I'm learning Erlang. It's my first time with a non-imperative programming language.
I've written a code and I want some thoughts about it:
Is my logic easy to understand?
Is my code idiomatic?
Is my ...
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1answer
67 views
Particle in Cell: efficient data structure handling
I am building a simulation where you have 'Agents' distributed over a rather large landscape. Because the number of Agents is small, compared to the size of the landscape, I use the PIC approach where ...
2
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1answer
30 views
Distributed (asynchronous) averaging
This code simulates a distributed averaging protocol. There is a network of nodes, and at the clicks of a Poisson process:
A random node wakes up
Transmits it's current average to all the nodes it is ...
5
votes
1answer
91 views
Circuit Simulator
I'm trying to learn Golang from Java, and to do this, I wrote a basic circuit simulator with only two circuits. Is there anything I can do better to make it more idiomatic?
Simulator.go
...
2
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2answers
72 views
Random positioning and movement of a rabbit on a table
I was inspired by this:
If you would put a rabbit randomly on a circular table with radius r=
1 meter and it moves 1 meter in a random direction, what is the
chance it won't fall off?
I ...
12
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2answers
510 views
Gravitational Brute Force N-body Algorithm
I've just started dabbling with code, and as a learning exercise I've written a simple algorithm for solving gravitational n-body problems numerically in JavaScript.
I would be very grateful for ...
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2answers
214 views
Distributed system simulator
I have coded a very simple distributed system simulator in Python. It uses multiprocessing to assign tasks, and queues to communicate between processes.
The code is shown below.
...
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2answers
63 views
Generating time series for generator ON or OFF
Want to create time series for the nuclear power plant performance using the equation for Time to fail and time to repair for 8736 hours in the year so that I have the time series in hours when the ...
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2answers
84 views
Functional translation of dice simulation
I have tried my hands at "functionalising" a toy problem I had: find the expected number of throws of a six sided die until all sides have been seen (the answer is 14.7)
My starting point is my ...
5
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2answers
129 views
Attempting to run multiple simulations of the Gillespie algorithm for a set of stochastic chemical reactions in less than 10 minutes
I have written Python code that generates a plot. In the code below, when I set maxtime = 0.1, the program takes ~50s and when I set ...
6
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1answer
94 views
Approximating π via Monte Carlo simulation
Inspired by a tweet linked to me by a friend and a Haskell implementation by her for the same problem, I decided to try my hand at approximating the value of π using everything in the Haskell standard ...
11
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1answer
198 views
Lotto simulator
With the recent craziness of the Powerball in the US, I got interested in building a little lotto simulator to see how frequently I could win with purchasing large amounts of tickets.
For those not ...
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0answers
24 views
Spatial parametric scaling in agent-based model
I’m running a simple agent-based disease spread model on a 2D lattice, where disease transmission in a population depends on each individual’s chance of avoiding infection at every time step, which ...
7
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2answers
71 views
Quite-Off-The-Bat Complex Console Ant Colony Simulator w/ Partial AI
As a follow-up of my previous non-off-the-bat Ant Colony Simulator, we have this one that works off-the-bat... quite; the code for when the ants find and take the food isn't really done but it would ...
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2answers
2k views
Ant Colony Simulator
This program is a simulation of an ant colony, inspired by SimAnt. It doesn't do it off the batch; there must be code that instructs the ants to follow scent tiles in particular and react to the food.
...
2
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1answer
151 views
Velocity verlet implementation
My code is meant to update the positions and velocities of planets. There are a few methods in this class, but updatePosition and ...
7
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0answers
136 views
Fluid Simulation with SDL
I have always wanted to write a fluid simulation, and with the help of a paper and some StackOverflow users I've got something that works. My goal is to have a program that someone can run right away ...
5
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1answer
137 views
War Card Game Simulator
This is the second thing I've ever written in Python. I am just looking for what I could improve upon along with things that could be done better. It is as compact as I could make it with my current ...
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1answer
92 views
MAC1 simulator/debugger
In constructing an answer to this question, I wrote a small debugger/simulator for the MAC-1 instruction set.
There are a number of simulators already out there, but most are either too old to be ...
12
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2answers
256 views
How Long Will Your Smartphone Distract You From Family Dinner?
I wrote a program to simulate this week's 538 Riddler, reproduced below:
You’ve just finished unwrapping your holiday presents. You and your
sister got brand-new smartphones, opening them at the ...
8
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1answer
243 views
Discrete event simulation of a prioritized lunch queue
Note
This post is a continuation of Discrete event simulation of a prioritized lunch queue in Java (Data structures). Please refer to it for problem description.
This part about "algorithms": all ...
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1answer
78 views
Discrete event simulation of a prioritized lunch queue in Java (Data structures)
(See also the Algorithms part.)
Post details
The program I am putting for being reviewed does not fit entirely in a single post, so I have to resort to the equation by Niklaus Wirth:
Algorithms + ...
