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Questions tagged [chaos]

Anything related to chaotic systems or chaos theory. Chaotic systems are systems that are extremely sensitive to initial conditions (e.g. round-off error in data stored digitally) thus leading to the impossibility of predicting their long-term evolution. The tag is mostly relevant to cases where algorithms show chaotic behavior.

Anything related to chaotic systems or chaos theory. Chaotic systems are systems that are extremely sensitive to initial conditions (e.g. round-off error in data stored digitally) thus leading to the impossibility of predicting their long-term evolution. The tag is mostly relevant to cases where algorithms show chaotic behavior.

See Wikipedia page on chaos theory.

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Chaos monkey testing for Microsoft Orleans cluster

I’m looking for some guidance that will help to design a “chaos monkey” testing approach for Orleans cluster. I’m new on that, so what I can think is a script that can randomly restart silo’s, stop/move grains, and do other destructive actions.…
Denys Kholod
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chaos game for DNA sequences

I have tried the mathematica code for making the chaos game for DNA sequences posted in this address: http://facstaff.unca.edu/mcmcclur/blog/GeneCGR.html which is like this: genome = Import["c:\data\sequence.fasta", "Sequence"]; genome =…
Layla
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RSolve not solving discrete Rossler system

I'm working with chaotic attractors, and testing some continuous-> discrete equivalences. I've made a continuous simulation of the Rossler system this way a = 0.432; b = 2; c = 4; Rossler = { x'[t] == -y[t] - z[t], y'[t] == x[t] + a*y[t], …
Javier Abrego
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Orbit Diagrams with DynamicalSystems Initial Condition not Working

I am trying to using the DynamicalSystems julia package to plot an orbit diagram of a discrete dynamical system governed by the following equation: y_{n+1} = 1- by_n^2 I'm able to get it to plot however I can't seem to get the initial condition to…
Cavenfish
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Reaction-diffusion parallel growing method

I've created many types of reaction-diffusion patterns using different parameters for death and feed rates etc. Working with them on Ready by GollyGang (a simple C++ software that can grow the patterns based on parameters and code) However, they all…
ofer dofer
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Chaotic Pendulum Exhibiting Chaotic Behavior with the Same Initial Conditions

My first post on Stack Overflow, so bear with me. I have built a model of a chaotic double pendulum in python using the pymunk physics library, which in turn uses the chipmunk C library. The pendulum, being chaotic, displays extreme sensitivity to…
TheRuler
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Why are these Random Numbers slowly gravitating towards a negative value?

The program is supposed to do the following: Initializes a grid of values, "ActualGridValues", (X rows by Y columns) equal to 0. Creates another grid of values, "RandomGridValues", (X rows by Y columns), defines each cell in the grid as equal to…
user2161457
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Sources of Entropy on the Web

In order to guarantee honesty of a random number generator, the idea is that users can, if they wish, verify that the number is, in fact, generated from public sources of entropy. This enables the system to ensure it's users that the random number…
Jordan Arseno
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Simple way to delete existing pods from Python

I have end-to-end tests written in pytest, running on a Kubernetes cluster in Namespace foo. Now I want to add simple chaos engineering to the tests to check the resilience of my services. For this, I only need to delete specific pods within foo --…
DaveFar
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Chaos Monkey operability with Kubernetes?

Does anyone have experience using Chaos Monkey with Kubernetes? Curious as to how Chaos Monkey is setup, the outputs, reports, etc. Thanks in advance!
Scott Walker
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Chaos engineering best practice

I studied the principles of chaos, and looks for some opensource project, such as chaosblade which is open sourced by Alibaba, and mangle, by vmware. These tools are both fault injection tools, and do nothing to analysis on the tested…
NingLee
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Is there a node.js module that can generate 1/f (pink noise) fluctuations?

I'm looking for a node.js module that would be able to generate fluctuations (of any sort) that would follow the S(f) = 1/f "pink / fractal noise" pattern. That means, that if we performed Fourier analysis of the time-series we'd find that there's a…
Aerodynamika
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Bifurcation and Lyapunov exponent in Python

I am a relative beginner when it comes to python, and I currently am trying to figure out some python for a problem I have. I am attempting to calculate the lyapunov exponent of a bifurcation diagram I am supposed to be creating. The equation is…
JRFBSR
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Getting ValueError while plotting a Bifurcation Diagram in Python with too much iterations

I'm currently trying to plot a bifurcation diagram from a 1D logistic map. Here is my code: def logistic_map(x0, r, n): """ This function is returning values for a given logistic map after n iterations with an initial state x0 and a…
Clément POIRET
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Can chaos monkey be used with GCE instances built via jenkins?

Currently, the builds are handled by jenkins, this is our chosen orchestrator. According to the Chaos Monkey deploy guide: "To use this version of Chaos Monkey, you must be using Spinnaker to manage your applications." My assumption from that is…
fleggle
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