So here's the full process of me, painting a portrait of me ca. 1982: https://youtu.be/PQ3IKiTSjhw
I really like this painting a *lot* and I so enjoy watching the process - hope you like it, too! #artTimelapse #traditionalArt

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 13:32

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 13:32

Mar 20, 2019, 13:32

Peter @pkra@mathstodon.xyz

@rusawe im Deutschen schreibt man wohl auch von tröts.

Shocking, I know.

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 13:30

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 13:30

Mar 20, 2019, 13:30

Peter @pkra@mathstodon.xyz

abel prize, mathematic in germany Show more

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 11:09

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 11:09

Mar 20, 2019, 11:09

Peter @pkra@mathstodon.xyz

Free simile: Selling a liquid that requires shaking in a container that cannot close properly.

Now let's clean up.

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 08:12

**Peter** @pkra@mathstodon.xyz · Mar 20, 2019, 08:12

Mar 20, 2019, 08:12

Peter @pkra@mathstodon.xyz

The Very Hungry Caterpillar was published 50 years ago today.

https://en.wikipedia.org/wiki/The_Very_Hungry_Caterpillar?wprov=sfla1

(In Germany anyway
https://de.wikipedia.org/wiki/Die_kleine_Raupe_Nimmersatt?wprov=sfla1)

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 13:01

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 13:01

Mar 19, 2019, 13:01

Peter @pkra@mathstodon.xyz

Oh look, it only took 16 years to give a woman an Abel Prize...

http://www.ams.org/news?news_id=4970

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 12:52

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 12:52

Mar 19, 2019, 12:52

Peter @pkra@mathstodon.xyz

@aardrian 😇 I'm not saying if you don't.

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 12:33

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 12:33

Mar 19, 2019, 12:33

Peter @pkra@mathstodon.xyz

@aardrian indeed. But since I'm just writing up a report after a testing project across reading systems, I just had to tell someone to feel a little less sad. 😖 Sorry for abusing the thread.

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 11:53

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 11:53

Mar 19, 2019, 11:53

Peter @pkra@mathstodon.xyz

@aardrian in slightly related news: Kindle still doesn't support alt text. Only some books have "screenreader: supported" status -- which seems to mean "image alt text works with NVDA" (no headings, lists etc). I can't find any documentation on how a book can get that status either.

Le Sigh...

**Peter** · Mar 10, 2019, 08:10

Peter boosted

**0xDE** @11011110@mathstodon.xyz · Mar 10, 2019, 08:10

Mar 10, 2019, 08:10

0xDE @11011110@mathstodon.xyz

Timothy Browning has discovered that
\[\begin{align}
33&=8866128975287528^3\\
&+(-8778405442862239)^3\\
&+(-2736111468807040)^3.
\end{align}\]

This settles all but one case of which two-digit numbers can be represented as a sum of three cubes. The remaining case is \(n=42\).

For more, see https://gilkalai.wordpress.com/2019/03/09/8866128975287528%C2%B3-8778405442862239%C2%B3-2736111468807040%C2%B3/ (where I found out about this) or https://en.wikipedia.org/wiki/Sums_of_three_cubes (new article I wrote once I found out).

**Peter** · Mar 13, 2019, 20:59

Peter boosted

**0xDE** @11011110@mathstodon.xyz · Mar 13, 2019, 20:59

Mar 13, 2019, 20:59

0xDE @11011110@mathstodon.xyz

While searching for more references for the new Wikipedia article (https://en.wikipedia.org/wiki/Sums_of_three_cubes) I found a horrible mistake related to this problem in Wolfram's _A New Kind of Science_, p. 789 (https://www.wolframscience.com/nks/p789--implications-for-mathematics-and-its-foundations/). Wolfram says that the smallest solution to \(x^3+y^3+z^3=2\) is the known sporadic one,
\[\begin{align}2&=1214928^3\\
&+ 3480205^3\\
&+ (-3528875)^3.
\end{align}\]
But the parametric solution has many that are smaller: \((1,1,0)\), \((7,-5,-6)\), \((49,-47,-24)\), etc.

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 08:48

**Peter** @pkra@mathstodon.xyz · Mar 19, 2019, 08:48

Mar 19, 2019, 08:48

Peter @pkra@mathstodon.xyz

@baldur you are on wrong side of the gulf stream 🙃 cherry blossoms are starting to come out over here.

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 18:33

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 18:33

Mar 18, 2019, 18:33

Peter @pkra@mathstodon.xyz

@rusawe woohoo! Willkommen!!

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 12:13

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 12:13

Mar 18, 2019, 12:13

Peter @pkra@mathstodon.xyz

@aardrian sigh. I mean, it's a good idea, obviously. But the race to the bottom will be painful.

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 12:01

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 12:01

Mar 18, 2019, 12:01

Peter @pkra@mathstodon.xyz

@aardrian do you mean a missing alt attribute triggering auto-text? Yeah, that makes "sense" (for some value of sense).

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 11:26

**Peter** @pkra@mathstodon.xyz · Mar 18, 2019, 11:26

Mar 18, 2019, 11:26

Peter @pkra@mathstodon.xyz

@aardrian next step: an attribute to trigger auto-text automatically, so devs can say "problem solved" / "not my problem anymore" / "go complain to Google/Facebook/Microsoft".