Sorry, not sure how that happened! Yes, here it is: https://blog.polaris64.net/post/verlet-physics-playground/

A list comprehension is used to convert and/or filter elements of another iterable, in your case a range but this could also be another list. So you can think of it as taking one list, filtering/converting each element and producing a new list as a result.

So there’s no need to append to any list as that’s implicit in the comprehension.

For example, to produce a list of all squares in a range you could do:

[x*x for x in range(10)]

This would automatically “append” each square to the resulting list, there’s no need to do that yourself.

Common Lisp. I really enjoy the interactive development experience and the language itself (and macros). I feel though that the ecosystem isn’t very active and so existing libraries are often unmaintained which is a shame.

And for those that don’t you have JC

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