[TUHS] Happy birthday, Niklaus Wirth!

[Nemo]

On 16/02/2018, Tim Bradshaw <tfb at tfeb.org> wrote (in part):
> In General Relativity, one of the things you need to do is, starting from a
> metric [...], compute various geometrically and physically interesting properties.

Susssman is trying to teach DG via lisp.  (Vide his "Functional
Differential Geometry".)
And a really nice post, by the way.

N.

P.S. Graham wants everyone to use LISP (http://www.paulgraham.com/hp.html ).