## To insulate or not to insulate ? heat losses in my house

Inspired by David JC MacKay’s Sustainable Energy – without the hot air, I estimate the heat losses of my newly bought house and try to ponder the benefits of increased insulation.

Inspired by David JC MacKay’s Sustainable Energy – without the hot air, I estimate the heat losses of my newly bought house and try to ponder the benefits of increased insulation.

I’ve been recently refreshing my finite element skills and found a fun problem that appears when working with 2D meshes made of triangles. The problem is as follows: "Given any 2D triangle T defined by its vertices, can I map it to a reference triangle with vertices (0, 0), (1, 0) and (0, 1)?".

A classic topic in computer graphics, implemented using a simple cube model.

In this post, we're trying to solve the potential flow equations for an airfoil-like situation, using finite differences in 2D.

In these times of Coronavirus, I've been bit by the Bayes's bug. This post is meant as a short introduction to Bayes's theorem using several examples. It closes with an application taken from Allen Downey's book *Think Bayes*, the *audience problem*.

Inspired by a recent Twitter post, I recreate a phased array animation using numpy, matplotlib and holoviews.

Since the topic came up in a MOOC I'm currently taking, this post focuses on a (the?) general method for deriving high-order approximations to derivatives of functions sampled on a grid.

I'm still clinging to my Kindle 3 ("Keyboard") ebook reader. I often want to read PDF files that are scanned copies of old books. Since performance easily suffers when using the files as is, I've researched ways to convert the files to a more suitable PDF format.

Inspired by a tweet, we follow a rabbit hole down the matplotlib path. We end up recreating a figure originally published by Maxwell regarding electrostatics.

As a follow-up to our previous post, we present a simple interactive app built with recent Python dashboarding technology called Panel.