Questions tagged [physics]
Physics is a science that studies the interactions of energy and matter. The physics tag should be used for questions about how physics can be simulated or implemented in programming.
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How can I make my force calculations better?
I am making a simple physics solver (haven't gotten to collision resolution or detection yet, just finished making it mt'ed), and when I apply forces through "W", "A", "S"...
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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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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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Improving execution time of physics, data acquisition triggering system simulation
Background
I'm attempting to write a physics simulation code, one portion of which involves simulating the triggering system of some equipment. The equipment works as follows: environmental noise (...
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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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VBA functions to calculate sun and moon positions
I have the following VBA code (across three modules) to make UDFs to calculate sun & moon position data. The issue I'm facing is that they are very slow to run as I have over 6000 rows (over 10 ...
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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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Planetary simulation in python
I have created a program in python that calculates forces between bodies (i.e earth, moon and a hypothetical moon) and make them move according to the changes in velocity and forces. This is the code ...
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Simulating the orbits of the Earth, Moon and Sun together in Fortran
This has been racking my brain for hours now. I will try to explain as much as I can. I'm aware this code is horrendously ungraceful, but I'm new to Fortran and making things more efficient is not ...
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Simulating a two-body collision problem to find digits of Pi
I came across a nice video on 3Blue1Brown's channel that highlights a very indirect way to find the digits in Pi. I'd suggest watching the whole video, but briefly:
The setup is as above. A "small" ...
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Calculating the energy of the harmonic oscillator using a Monte Carlo method
The problem
The partition function for the quantum harmonic oscillator can be written in the path integral formulation as
$$Z\propto\int Dx(\tau)\exp\left(-\frac{S_E}{\hbar}\right)=\int Dx(\tau)\exp\...
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Monte Carlo simulation for the harmonic oscillator
Is there any improvement that can be made to the following code, written to simulate the harmonic oscillator in the path integral formulation with Monte Carlo methods?
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Generating Position
I'm written the following code to calculate the position of a motor during each timestep, the result of which will be compared with feedback from a quadrature encoder and subjected to a PID algorithm. ...
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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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