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Triply-Periodic Surfaces

A reference containing information about periodic surfaces suitable for infill structure in 3D printed parts.


 



Mesh Coarsening

An algorithm for coarsening simplex meshes, to enable multigrid methods with unstructured meshes.



Visual Proof: Sum of Squares

Gauss is said to have found an elegant visual proof for summing integers. Does a similar idea work for summing perfect squares?

 


Coffee Cup Vibrations

What sound does a coffee mug make when you tap it with a spoon? In this post, we write a small 2D finite element code in Mathematica to simulate a coffee cup vibrating.