Artisian
@Artisian@lemmy.world
- Submitted 2 days ago to [deleted] | 13 comments
- Comment on How do I stop hating children? 6 months ago:
But I think blaming children for the fact that all people are unbearable is… idk, you’ve mistaken a symptom for a problem? Working on the general misanthropy is probably a better start?
- Comment on How do I stop hating children? 6 months ago:
Can I just say that it’s very weird to me that you’re only listing loud things children do… Like, have you ever been around a sleeping child? Do they bother you? Average volume of a child is higher than adults, but only by a factor of 2 or so. And their noises are honest, unlike the adult noises.
- Submitted 6 months ago to videos@lemmy.world | 7 comments
- Comment on What are the most mindblowing fact in mathematics? 10 months ago:
Oh that’s cool - I had heard one or two examples only. Is there some popular writeup of the story from Savant’s view?
- Comment on What are the most mindblowing fact in mathematics? 10 months ago:
An arithmetic miracle:
Let’s define a sequence. We will start with 1 and 1.
To get the next number, square the last, add 1, and divide by the second to last. a(n+1) = ( a(n)^2 +1 )/ a(n-1) So the fourth number is (2*2+1)/1 =5, while the next is (25+1)/2 = 13. The sequence is thus:
1, 1, 2, 5, 13, 34, …
If you keep computing (the numbers get large) you’ll see that every time we get an integer. But every step involves a division! Usually dividing things gives fractions.
This last is called the somos sequence, and it shows up in fairly deep algebra.
- Comment on What are the most mindblowing fact in mathematics? 10 months ago:
I now recall there was a numberphile with exactly that visualisation! It’s a clever visual
- Comment on What are the most mindblowing fact in mathematics? 10 months ago:
For the uninitiated, the monty Hall problem is a good one.
Start with 3 closed doors, and an announcer who knows what’s behind each. The announcer says that behind 2 of the doors is a goat, and behind the third door is
a carstudent debt relief, but doesn’t tell you which door leads to which. They then let’s you pick a door, you get what’s behind the door. Before you open it, they open a different door than your choice and reveals a goat. Then the announcer says you are allowed to change your choice.So should you switch?
The answer turns out to be yes. 2/3rds of the time you are better off switching. But even famous mathematicians didn’t believe it at first.
- Comment on What are the most mindblowing fact in mathematics? 10 months ago:
Note you’ll need the regions to be connected (or allow yourself to color things differently if they are the same ‘country’ but disconnected). I forget if this causes problems for any world map.