sobe86

u/sobe86


r/infinitenines•

I'd like to expand on one key point made in other threads: in mathematics it's important that we agree on the rules first, otherwise we're just going to be talking past one another.

When we make a mathematical statement like 0.999... = 1, in a literal sense that is just a series of ascii symbols. It is neither 'true' nor 'false' in a meaningful way, unless we make concrete what we mean by the parts of it. When most mathematicians / students see '0.999...' with no further clarification, make a couple of leaps about what is meant there.

First of all, that we are defining a 'real' number, constructed in one of the usual ways. As an aside - the real numbers aren't really 'real'. In mathematics

3827

r/mathriddles•

X-posting this one: https://www.reddit.com/r/math/s/i3Tg9I8Ldk (spoilers), I'll reword the original.

 1.⁠ ⁠Find a curve of minimal length that intersects any infinite straight line that intersects the unit circle in at least one point. Said another way, if an infinite straight line intersects the unit circle, it must also intersect this curve.

 2.⁠ ⁠Same conditions, but you may use multiple curves. (I think this is probably the more interesting of the two)

For example the unit circle itself works, and is (surely) the shortest closed curve, but a square circumscribing the unit circle, minus one side, also works and is more efficient (6 vs 2 pi)

610

r/MachineLearning•

Source: Bloomberg (archive.fo link)

(N.B. Samy ≠ Yoshua Bengio, they are brothers). He co-founded Google Brain, and co-authored the original Torch library.

He was Timnit Gebru's manager during the drama at the end of last year. He did not directly reference this in his email today, but at the time he voiced his support for her, and shock at what had happened. In February, [the Ethical AI group was reshuffled, cutting Samy's responsibilities](https://twitter.

360169


r/changemyview•

First let me make something absolutely clear: this is not a stance on voting, or democracy in general, this is a stance on ME AS AN INDIVIDUAL voting. I am unequivocally NOT trying to stop others from voting, and I would feel bad if I did. I can and have campaigned for politicians to get elected, I feel I can maybe make a difference that way, but actually casting a vote? No.

This is for the following reason: The value of my one vote is zero. Either: the election will not be close, and my vote is like the difference between a 5.02544621% margin and a 5.02544622% margin: not even worth talking about. OR, the election does come down to a one vote margin (I am probably more likely to die

31112

r/humbleindiebundle•

Have had no joy with their customer support - I bought the bundle two days ago, everything was working fine, but then yesterday the download page stopped working for me. I click on the download links and there is no response. The rest of the website is fine.

Anyone have any ideas?

12

r/learnprogramming•

I'm not looking for this to turn into a bragging thread. I can touch type, and average about about 40 - 50 WPM. That's quite fast for an average person, but I'm guessing not very fast for a programmer. Would it be worth investing some time to improve that?

05