Onze onlangs overleden moeder heeft 60 jaar in het huis gewoond, dat wij nu aan het leegruimen zijn. Zij was, zoals velen van haar generatie, niet van het weggooien.

Plaats de cijfers 1 tot en met 9 zo in het diagram dat elk cijfer precies één keer voorkomt in elke rij, kolom, de negen vetomrande 3x3 vakken, én de vier grijze 3x3 vakken.

Horizontaal: 1. Vormgeving 6. Haar vader was koning van Taka-Tukaland 9. Past voor aal of kip 10. Transactie 12. Voor die problemen moet je tot tien kunnen tellen 14.

Zo’n dertig schilderijen van Jan Steen in de Leidse Lakenhal illustreren wel zijn artistieke veelzijdigheid maar niet veel van zijn persoonlijk leven.

"Of the many works of fiction that are published, very few involve mathematics or mathematicians. However, people who like mathematics (or are mathematicians ourselves) may especially enjoy reading those few that do. Moreover, as I argue in an article in the AMS Notices, mathematicians should be interested in these works of "mathematical fiction" even if we do not enjoy them because they both affect and reflect the non-mathematician's view of this subject." "At the moment, there are 1726 works of mathematical fiction listed in this database. This is much more than I expected when I started, and I have every reason to think that it will continue to grow as I learn of new works to list here."

The Mathematical Fiction Homepage is Alex Kasman's attempt to collect information about all significant references to mathematics in fiction. You can see the entire list (sorted by author, title or publication date). You can browse through the database to find your favorite genre, topic, motif or medium. If you've got more specific criteria in mind, try the search page. If you've been there before and just want to see what's been added recently, look at the listing of new/recently modified entries. For a more curated list, you can also check out Kasman's personal recommendations. Articles about mathematical fiction can be found on the resources page. The same page also makes note of other websites listing maths in the movies. There is some overlap between these sites and Kasman's database, but differences in criteria ensure they're not the same: The Mathematical Movie Database at QEDCat.com (With transcripts! Also a book) and their must-see list Oliver Knill's Mathematics in Movies page (With clips! And a 2006 povray gif?) Arnold G. Reinhold's The Math in the Movies page Brian Harbourne's Math Movie Picks Bonus: Wikipedia delves into the topic; so does TVTropes (pre-anti-adblock archive) (previously in 2009)

Darren Schiller has added a photo to the pool:

McHenry Street, Adelaide CBD