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0
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0answers
22 views

How would I identify a gap in a set of curve data, and get its value?

I have a set of 2-D data (x,y) and it produces a set of curves, and sometimes the set of curves do not overlap, and there is a distinct separation between the groups of curves, how would I identify ...
-6
votes
0answers
38 views

Naming of velocity + position tuple of data

The code manipulate object in 2D space, and a very common value is a tuple of four values, position in x axis, position in y axis, velocity in x axis, velocity in y axis. In C++, it is: typedef ...
3
votes
0answers
53 views

Finite-difference approximation of the 2nd derivative operator matrix for a staggered grid

I'm working on a computational physics assignment and I was looking for some help as I've got stuck! The question is: Write a function to create the finite-difference approximation of the 2nd ...
0
votes
1answer
112 views

Changing coordinate systems in python

I am working on a visual python program that is meant to model the orbit of an electron around the core of a Hydrogen atom. In order to avoid the singularity at r = 0 in the equation for coulomb ...
1
vote
1answer
32 views

System for deducting velocity against sources pf gravity

Say I have a particle-based physics engine (which I do) that uses lots of particles with a x and y coordinate and velocity. These particles can also have a mass, which means that these particles (with ...
0
votes
1answer
73 views

Convert x and y velocity to x and y velocity relative to another point

The question I asked probably isn't very clear, so I'll explain. If I have an x and y velocity, where the y goes towards the bottom of the screen, and the x goes towards the right of the screen, how ...
4
votes
1answer
119 views

How to define the motion path of one object on a surface of the other one?

I have an uncommon problem. There are 2 3D objects, which are represented by arrays of vertices and triangles (.stl files). Each of them contains a big enough amount of vertices: 1-10 mln ones. The ...
-3
votes
1answer
583 views

Physics Engine with Fixed-Point Positions [closed]

Fixed-point object locations allow for worlds which are much more scale-able. Using a 64-bit integer (per dimension), and 0.1 millimeter precision, a world can be created which is 100% numerically ...
15
votes
12answers
2k views

Teaching myself, as a physicist, to become a better programmer [closed]

I've always liked physics, and I've always liked coding, so when I got the offer for a PhD position doing numerical physics (details are not relevant, it's mostly parallel programming for a cluster) ...
1
vote
1answer
235 views

Help me understand this “mindmap / constellation” visual pattern

Please help me identify and understand this visual pattern, what's the common name used for such mindmap / constellation visualisations? http://asterisq.com/products/constellation/roamer/demo ...
4
votes
4answers
6k views

confusion between these two networking terms: transmission rate vs. propagation speed [closed]

I read this in TCP/IP PROTOCOL SUITE second edition, written by Behrouz A. Forouzan and Sophia Chung Fegan. In traditional Ethernet, the minimum frame length is 520 bits, the transmission rate is ...
13
votes
5answers
546 views

Idea for a physics–computer science joint curriculum and textbook [closed]

I want to write (and have starting outlining) a physics textbook which assumes its reader is a competent computer programmer. Normal physics textbooks teach physical formulas and give problems that ...
7
votes
2answers
3k views

Is video game programming usually physics related?

I know this is obviously not true for some games, minesweeper, card games, etc. But what about any game involving simulating the real world environment. Obviously these games have some form of a ...