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by almostgotcaught 614 days ago
> how do you calculate hypotenuse, because it's been a long time since Pythagoras made the last commit.

Asinine - everything advances and needs maintenance over time, even geometry. I invite you to try building a game without using quaternions or projective (ie non-euclidean) geometry.

Edit: does hn award points based on contrariness? Or is it just that people on hn think they're super clever with their contrary point?

3 comments

quaternions - 1843, Hamilton

projective geometry - 1420's but big in the 19th Century.

These are things I used heavily programming earth mapping systems in the mid 1980s to mid 1990s. Principal reference text was from the 1920s.

... The guy I responded to is saying Pythagoras is good enough. Do you know what year Pythagoras died?
Does that invalidate his theorem (that he cribbed from the Babylonians)?
No one said it invalidated his theorem. They said it has been expanded upon.

Also, comparing web technologies to something as fundamental as the pythagorean theorem is reductionist and overall pretty ridiculous. Web technologies need maintenance. Proven mathematical formulas don’t.

They actually asked if I was aware what year he died.

The eponymous triangle work is just as valid as it ever was in Euclidean geometries - lot of work there. That work is just as wrong as it ever was in non-Euclidean geometries - maths is timeless like that.

> Also, comparing web technologies to something as fundamental as ...

Take that up with whomever it was that did that.

495 BC. And his Theorem is still good enough for most practical purposes, so his point stands
I understand what you want to say here but...

Do you need these things to write Sokoban, Tetris or any other simple 2d game?

> does hn award points based on contrariness? Or is it just that people on hn think they're super clever with their contrary point?

It’s both, and seems to be a theme here. HN generally despises the mainstream, so anything that goes against that is praised with little additional thought. A great example is the recent article about “founder mode” which is definitely one of the most idiotic contrarian things I’ve ever read, but receives heaps of upvotes every time it gets posted.