Hacker News
- Lemonade Stand https://possiblywrong.wordpress.com/2024/03/12/lemonade-stand/ 42 comments
- Using a Watch as a Compass https://possiblywrong.wordpress.com/2012/01/25/using-a-watch-as-a-compass/ 3 comments
- I found two identical packs of Skittles among 468 packs https://possiblywrong.wordpress.com/2019/04/06/follow-up-i-found-two-identical-packs-of-skittles-among-468-packs-with-a-total-of-27740-skittles/ 207 comments
- Calories in, calories out http://possiblywrong.wordpress.com/2014/10/21/calories-in-calories-out/ 210 comments
Lobsters
- Bresenham’s circles are (always?) optimal https://possiblywrong.wordpress.com/2022/02/14/bresenhams-circles-are-always-optimal/ 2 comments compsci
- Bresenham’s circles are (always?) optimal https://possiblywrong.wordpress.com/2022/02/14/bresenhams-circles-are-always-optimal/ 2 comments math
- Bresenham’s circles are (always?) optimal https://possiblywrong.wordpress.com/2022/02/14/bresenhams-circles-are-always-optimal/ 2 comments programming
- Beware the "natural" quaternion https://possiblywrong.wordpress.com/2021/05/10/beware-the-natural-quaternion/ 3 comments math
- Balanced clock hands: Given an analog clock with sweeping hour, minute, and second hands, at what times are the hands most equally separated in angle? https://possiblywrong.wordpress.com/2021/02/17/balanced-clock-hands/ 31 comments math
- What is the probability of a tie vote? https://possiblywrong.wordpress.com/2021/01/28/what-is-the-probability-of-a-tie-vote/ 34 comments math
- Counting edge-matching puzzles https://possiblywrong.wordpress.com/2020/12/28/counting-edge-matching-puzzles/ 3 comments math
- The Fisher-Yates shuffle is backward https://possiblywrong.wordpress.com/2020/12/10/the-fisher-yates-shuffle-is-backward/ 4 comments programming
- Computing the angle between two vectors https://possiblywrong.wordpress.com/2020/07/17/computing-the-angle-between-two-vectors/ 4 comments math
- Seven riffle shuffles is not enough– except when it is https://possiblywrong.wordpress.com/2020/04/21/seven-riffle-shuffles-is-not-enough-except-when-it-is/ 5 comments math
- Solving the 2x2x2 Rubik’s cube (revisited) https://possiblywrong.wordpress.com/2020/01/30/solving-the-2x2x2-rubiks-cube-revisited/ 5 comments math
- Tracking a card through a shuffled deck (response to recent thread, with interesting conjecture) https://possiblywrong.wordpress.com/2020/01/06/tracking-a-card-through-a-shuffled-deck/ 21 comments math
- Follow-up: I found two identical packs of Skittles, among 468 packs with a total of 27,740 Skittles https://possiblywrong.wordpress.com/2019/04/06/follow-up-i-found-two-identical-packs-of-skittles-among-468-packs-with-a-total-of-27740-skittles/ 8 comments programming
- Follow-up: I found two identical packs of Skittles, among 468 packs with a total of 27,740 Skittles https://possiblywrong.wordpress.com/2019/04/06/follow-up-i-found-two-identical-packs-of-skittles-among-468-packs-with-a-total-of-27740-skittles/ 39 comments math
- Identical packs of Skittles https://possiblywrong.wordpress.com/2019/01/09/identical-packs-of-skittles/ 7 comments math
- Random drug testing in the NFL https://possiblywrong.wordpress.com/2018/11/30/random-drug-testing-in-the-nfl/ 10 comments math
- Proofs and theorems without words https://possiblywrong.wordpress.com/2018/01/14/proofs-and-theorems-without-words/ 5 comments math
- Analysis of Bingo: "the winning Bingo card among multiple players is much more likely to have a horizontal bingo than vertical" https://possiblywrong.wordpress.com/2017/10/24/analysis-of-bingo/ 8 comments math
- Digits of pi and Python generators (conjecture about BBP formula in comments) https://possiblywrong.wordpress.com/2017/09/30/digits-of-pi-and-python-generators/ 5 comments math
- Floating-point agreement between MATLAB and C++ https://possiblywrong.wordpress.com/2017/09/12/floating-point-agreement-between-matlab-and-c/ 8 comments matlab
- The following are equivalent https://possiblywrong.wordpress.com/2017/07/24/the-following-are-equivalent/ 24 comments math
- Secret Santa Revisited: probabilities and problems with random derangements https://possiblywrong.wordpress.com/2011/12/05/secret-santa-revisited/ 5 comments math
- This month's IBM Research puzzle is harder than it looks https://possiblywrong.wordpress.com/2016/08/02/ibm-research-ponder-this-august-2016-puzzle/ 12 comments math
- Train tracks and graph theory https://possiblywrong.wordpress.com/2015/07/30/train-tracks-and-graph-theory/ 10 comments math
- Exact analysis of Chutes and Ladders in Python http://possiblywrong.wordpress.com/2015/02/20/analysis-of-chutes-and-ladders/ 5 comments programming
- More on "not-so-bad" card shuffling algorithms http://possiblywrong.wordpress.com/2014/12/01/card-shuffling-algorithms-good-and-bad/ 13 comments programming
- A card puzzle in response to the recent discussion about "extra cards in the deck" http://possiblywrong.wordpress.com/2011/02/13/card-puzzle-part-2/ 4 comments math
- When approximate is better than exact: converting ECEF to latitude/longitude/height accurately http://possiblywrong.wordpress.com/2014/02/14/when-approximate-is-better-than-exact/ 3 comments programming
- Floating-point equality: It’s worse than you think http://possiblywrong.wordpress.com/2013/11/15/floating-point-equality-its-worse-than-you-think/ 43 comments compsci
- Interesting and sometimes weird use of strategy in the Memory Game (aka Concentration) played with perfect memory http://possiblywrong.wordpress.com/2011/10/25/analysis-of-the-memory-game/ 9 comments math
- The second coolest card trick I know, why it works... and how to make it better http://possiblywrong.wordpress.com/2011/04/04/analysis-and-a-variant-of-the-premo-card-trick/ 10 comments math