Install G77 on Ubuntu >=14.04

In 2012 I wrote how to install G77 on Ubuntu >=9.04. However that approach no longer works (yet that particular blog posts gets lots of hits because of a link from stackoverflow). So here are some updated instructions which work for Ubuntu >= 14.04.


Number of Unique Song Choices on Desert Island Discs

Desert Island Discs celebrates its 75th birthday today, and today’s guest is David Beckham. Beckham will pick 8 song choices to take away with him on a desert island. What I wondered was, will all of his song choices have been picked by guests previously? With over 3,000 episodes there are going to be a lot […]

Maths on a Mug

Maths on a Mug #16

#mathsonamug — Sean Elvidge (@seanelvidge) November 17, 2016 Perhaps a “simple” #mathsonthemug this time. Simple, but very important. This is Bayes’ theorem: \[P(A|B) = \frac{P(B|A)P(A)}{P(B)}.\] This relates the probability of observing \(A\) given that \(B\) is true where \(A\) and \(B\) are events, we also require that the probability of \(B\) does not equal […]

Maths on a Mug

Maths on a Mug #15

#mathsonamug #maths #newpoundcoin — Sean Elvidge (@seanelvidge) November 4, 2016 Keeping with the theme of yesterdays blog post about the new pound coin and shapes of constant diameter here is a nice little result known as Barbier’s theorem. Simply, it says that for any curve of constant diameter (width; \(w\)) the perimeter of that shape […]