Mixup of library names in Friday's lecture

Hi all,
I just noticed that during the lecture on Friday (when talking about problem 3 of project 2) I started talking about comparing against the result from Eigen, when I meant to say Armadillo. Apologies for the confusion.

While we use Armadillo in this course, Eigen is another popular, open-source library for linear algebra in C++. We use Eigen in the GAMBIT project that I work on for my research -- hence the mixup.