This is amazing! I'd read Lagrange's eq in classical mechanics texts many times but my brain is just so tuned in thinking in terms of computations and programmi

This is amazing! I'd read Lagrange's eq in classical mechanics texts many times but my brain is just so tuned in thinking in terms of computations and programming that this approach in this PDF just feels natural. If lot of other things (how about General Relativity?) were written like this in terms of code, I would eat it up like buttered bread.