A blog of Python-related topics and code.
Finding anagrams with a trie
Posted by: christian on 23 Mar 2017
A trie is an ordered tree data structure often used to store word lists, for example, for auto-complete applications. Each node in the tree is associated with a letter; the association of nodes with each other (parents, children, grandchildren, etc.) orders the letters into words. For example, the simple dictionary consisting only of the words "bat", "ball", "coo", "cow" and "cowl" could be represented by the trie in the figure below, in which the black circles indicate nodes which represent word terminators.
The Goldbach Comet
Posted by: christian on 22 Mar 2017
Goldbach's conjecture is probably one of the most famous unsolved problems in mathematics. It states that
Wa-Tor World
Posted by: christian on 10 Mar 2017
Wa-Tor is a population dynamics simulation described by Alexander Dewdney in Scientific American (1984): "Computer Recreations: Sharks and fish wage an ecological war on the toroidal planet Wa-Tor".
Disasters in Great Britain and Ireland over time
Posted by: christian on 7 Mar 2017
Wikipedia has an interesting (if somewhat morbid) list of disasters in Great Britain and Ireland. This blog post will show how to scrape it and plot a chart of the deaths due to these disasters over time.
How many MPs have degrees in STEM subjects?
Posted by: christian on 3 Mar 2017
Not many: