Got an idea and want to make a simple 3D model, but don’t want to install a full-fledged CAD modeling suite and queue up a ...

Elliot Williams and Al Williams got together to compare notes on the most interesting posts this week on the site. As usual, there are just too many choices, so you’ll have to settle for ...

Green’s function for the one-dimensional Helmholtz equation: closed-form solution from its Fourier sine series Castro, Antonio S. de ...