A blog of Python-related topics and code.
COVID-19 Quarantine House: Hollywood Walk of Fame Edition
Posted by: christian on 9 Apr 2020
To find your Hollywood Walk of Fame Quarantine house, use this script on the command line, providing your latitude and longitude:
Illustrating the Padovan sequence
Posted by: christian on 8 Apr 2020
The Padovan sequence is a cousin of the more famous Fibonacci sequence defined by the initial values $P(1)=P(2)=P(3)=1$ and the recurrence relation $P(n) = P(n-2) + P(n-3)$. That is, the next value is obtained not by summing the previous two values but by summing the two values before the last one. The first few values are:
Plotting COVID-19 case growth charts
Posted by: christian in Featured on frontpage on 29 Mar 2020
Following on from this previous post, here is a short tutorial on creating this and similar charts using pandas by automatically downloading data from Johns Hopkins University's CSSE GitHub repository (the "JHU/CSSE dataset").
Plotting COVID-19 cases
Posted by: christian in Featured on frontpage on 27 Mar 2020
The Centre for Systems Science and Engineering (CSSE) at Johns Hopkins University publishes daily statistics of the number of confirmed cases of COVID-19 by country on its GitHub page. The short script below pulls data from this page to plot a bar chart of cases and growth in cases as a function of time for a given country. For example:
The Trapped Knight
Posted by: christian on 26 Mar 2020
The Trapped Knight problem is a chess-based problem apparently invented by Neil Sloane and giving rise to a finite number sequence in his Online Encyclopedia of Integer Sequences (OEIS A316667).