NAND Error-correction Code(docs.kernel.org)
81 points by signa11 | 39 comments
![Screenshot of jonathanadams.pro: A general Fortran code for solutions of problems in space mechanics [pdf]](https://hn.urlbox.com/shots/renders/2025/8/19/b66efd2d-2e0c-4574-9680-bb19df09deda.jpg)
First screen, captured .
Looks similar
![Screenshot of courses.csail.mit.edu: Mathematics for Computer Science (2018) [pdf]](https://hn.urlbox.com/shots/renders/2026/1/9/ae2aa14e-4a6c-4954-86ba-c8b6fc82ba70.jpg)
Mathematics for Computer Science (2018) [pdf](courses.csail.mit.edu)
366 points by vismit2000 | 62 comments
PDF of the 2018 revision of the MIT textbook Mathematics for Computer Science by Eric Lehman, F. Thomson Leighton, and Albert R. Meyer.
![Screenshot of cia.gov: CIA Star Gate Project: An Overview (1993) [pdf]](https://hn.urlbox.com/shots/renders/2025/12/29/f2450d35-0487-4890-be49-7c61471299e5.jpg)
![Screenshot of gwern.net: The Legend of von Neumann (1973) [pdf]](https://hn.urlbox.com/shots/renders/2026/10/2/f40e3e6d-db7b-4d6b-8562-1f3d9460447c.jpg)
The Legend of von Neumann (1973) [pdf](gwern.net)
292 points by suopspaces | 163 comments
A 1973 essay by mathematician Paul Halmos recounting the life, achievements, and legends of John von Neumann, presented as a scanned PDF.
