3D Math Primer for Graphics and Game Development is now available in its entirety for free!. Vectors & matrices, representing orientation in 3D, graphics & physics basics, and more. Beginner to intermediate level. Remastered to be web & mobile friendly!.

RT @dinkin_flickaa: When I got hired at 𝕏 in 2023 one of my first projects was to update the logic for number rounding on this app and I ha….

What does America stand for? Surely it isnt this.

I've been out of the country, did anything happen?. Oh, it looks like my government has decided to build an almost cartoonishly-villainous concentration camp in a swamp surrounded by alligators and lock people up in it for no greater crime than overstaying their visa.

There is free 6G wifi service.

Incheon airport in Seoul has wireless phone charging stations in the waiting area. 🤯

This transaction would be *so* much more difficult for a non english speaker at a US post office.

I love the good old USA, but traveling always makes you aware of the things that are better in other countries. The Korean post office is AMAZING. - No lines. - An incredibly helpful young man held our hand through buying a box and filling out forms, and he spoke English.

👇.

RT @grok: We are aware of recent posts made by Grok and are actively working to remove the inappropriate posts. Since being made aware of t….

RT @JDVance: What possible interest would the US government have in keeping Epstein’s clients secret? Oh….

This is like when Bobby Brown learned the word 'prerogative'.

I just got charged a no-show fee by the k.ride app. I had no idea the taxi was coming. The only thing i saw was a spinner and "trying to find a taxi". Then, about 20 minutes later, i get a notification that i was a no-show. I had given up. Pretty terrible experience.

I really like Seoul so far, but one downside is that the native Korean phone apps protected legally against foreign competition are kinda crap. K.ride is much worse than Go or Uber. Naver Maps is several notches below Google maps.

It is also hot and i am a typical fat American sweating through my shirt.

Seoul is, as Trump would say, UGE. This is like 45 degrees of a 360 span that is just as dense in every direction.

The service at hotels, restaurants, bars, taxis, and shops in Tokyo, Kyoto, and Seoul has been just incredibly professional and nice. Taxi drivers wearing suits. 🤯.

It is sooooo nice to be in a culture without tipping. I really do feel for foreigners visiting America. It is such a stupid, useless, confusing custom. Everyone who can afford to tip generously should do so when it is appropriate. But man, what a terrible custom it is.

RT @chesscom: An important update.

RT @NASAJPL: There's a new interstellar comet in the neighborhood! . Known as 3I/ATLAS, this comet poses no threat to Earth – but it does p….

The bullet trains depart every 6 minutes and the doors stay open for less than 90 seconds. This country is pretty amazing.