Backtracking Algorithms Letter

 

Dr. Dobb's Journal Volume 29, Issue 9, Number 364, September 2004

ITTF Obstruction

Regla de obstruccion de la pelota en donde genera confusiones.

En el mundial de dobles mixtos Chengdu 2024 revisan el Table Tennis Review (TTR), y queda clara la falta. (a pesar del reclamo del equipo chino)

Under the ITTF rules, a player commits an obstruction by touching the ball in play when it is above or moving towards the playing surface, provided it hasn't yet bounced on their side of the table since being hit by the opponent. This includes the player or anything they are wearing or carrying. The intent is to penalize actions that prevent an opponent from making a good return, rather than simply accidentally stopping the ball. 

 

 

Server-Side WebAssembly

Tech Review:

Server-Side WebAssembly
Lightweight apps with Wasm
 

Danilo Chiarlone

• MEAP began October 2024 
• Last updated August 2025 
• Publication in Early 2026

https://www.manning.com/books/server-side-webassembly

https://www.goodreads.com/review/show/8242302580

 

Data Preparation for AI and Analytics

Tech Review:

Data Preparation for AI and Analytics
From data to insights
Benoît Cayla

• MEAP began December 2024 
• Last updated May 2025 
• Publication in October 2025 (estimated) 

ISBN 9781633435742 300 pages (estimated) 

We regret that we will not be publishing this title.

https://www.manning.com/books/data-preparation-for-ai-and-analytics-cx

Spider Legs

 An old prize from Pickover.

 

Why Learn C

Technical Reviewer

Why Learn C
Go Behind the Curtain of Modern Systems with C23
Aug 2025

https://github.com/Apress/Why-Learn-C

https://link.springer.com/book/9798868815966

Dominosa Problem 73

For the 3rd printing of TAOCP Volume 4B.

0 6 1 5 1 1 4 6
6 6 6 1 1 0 1 4
5 6 1 3 2 1 4 4
5 5 3 2 6 2 2 4
5 3 6 3 2 0 2 2
3 4 3 0 0 5 2 5
3 3 0 4 0 0 5 4

That gets 807,752 solutions.

 

https://www-cs-faculty.stanford.edu/~knuth/taocp.html

https://devwebcl.blogspot.com/2018/06/dominosa.html

 

https://devwebcl.blogspot.com/2024/03/the-art-of-computer-programming-volume.html

 

https://www.solitairelaboratory.com/puzzlelaboratory/DominoGG.html

 

Premature Optimization is the Root of all Evil.

• https://shreevatsa.wordpress.com/2008/05/16/premature-optimization-is-the-root-of-all-evil/
• https://en.wikiquote.org/wiki/Donald_Knuth#Computer_Programming_as_an_Art_(1974)
• https://wiki.c2.com/?PrematureOptimization

  

Surreal Numbers

Java 30 years

Remembering the Java 30th Anniversary

2008! 

Java 1.4