Tags » Random Walk

splitting a field by annealing

A recent riddle that I pondered about during a drive to Luxembourg last weekend was about splitting a square field into three lots of identical surface for a minimal length of separating wire… While this led me to conclude that the best solution was a T like separation, I ran a simulated annealing R code on my train trip to… 276 more words


Gist 1 - Random Walking 1

The following window contains a GitHub gist that I created, which explains some Python basics and plays a little bit with a random walker. The fun thing about gists is, of course, that you can use them interactively, but unfortunately you cannot do that through WordPress (at least I don’t know how to do that, if possible). 58 more words

Basic Plots

Monte Carlo calculations of the radial distribution functions for a proton-electron plasma

“In conclusion, the Monte Carlo method of calculating radial distribution functions in a plasma is a feasible approach if significant computing time is available (…) The results indicate that at least 10000 iterations must be completed before the system can be considered near to its equilibrium state, and for a badly chosen starting configuration, the run would need to be considerably longer (…) for more conclusive results a longer run is needed so that the energy of the system can settle into an equilibrium pattern and steady-state radial distribution functions can be obtained.” A.A.

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Le Monde puzzle [#1024]

The penultimate and appropriately somewhat Monty Hallesque Le Monde mathematical puzzle of the competition!

A dresser with 5×5 drawers contains a single object in one of the 25 drawers.

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NOAA Global Temperature Data Doesn't Prove Global Warming’

Mikhail Voloshin via his Facebook page:- Re-Blogged From http://www.WattsUpWithThat.com

Random Walk analysis of NOAA global temperature anomaly data


The global temperature record doesn’t demonstrate an upward trend. 10,569 more words

CAGW Alarmism

How do tissues grow?

Interview with Edouard Hannezo from the University of Cambridge for the Naked Scientists. You can listen to the full interview here.

This year marks the 100th anniversary since the landmark publication On Growth and Form by D’Arcy Wentworth Thompson, which describes the mathematical patterns seen across the natural world including in shells, seeds and bees. 908 more words


Modelling The Hurst Exponent

One of the purposes of using the Hurst Exponent is to validate whether a price series is momentum, random walk or mean reverting. If we know this type of information, we may ‘fit’ a model to capture the nature of the series. 1,658 more words