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Joined 2 years ago
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Cake day: July 16th, 2023

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  • I hope you’re alright after that physical attack! Hope someone educated the kid on their autism and their actions too. I think I slightly understand the train of thought with the “it’s not an animal” argument though. I’m guessing the kid assumed that the word gold was reserved for actual gold unless talking about animals like the golden hamster or goldfish where it just meant gold colored :P

    Edit: also sorry for sending this comment thrice, no idea how that happened



  • Maybe, I really couldn’t tell that. To me this was a story about someone’s autistic brother who had multiple mental breakdowns with rampaging construction sites and injuring other classmates. ¯\_(ツ)_/¯

    I wouldn’t expect many people to know about concretes dangerous environmental impact through released CO2 during production and it is not mentioned in the post either.





  • Indeed, usually you would want to avoid a notation of sqrt(-1) or (-1)^(1/2). You would use e^(1/2 log(-1)) instead because mathematicians have already decided on a “natural” way to define the logarithm of complex numbers. The problem here lies with choosing a branch of the logarithm as e^z = x has infinitely many complex solutions z. Mathematicians have already decided on a default branch of the logarithm you would usually use. This matters because depending on the branch you choose sqrt(-1) either gives i or -i. A square-root is usually defined to only give the positive solution (if it had multiple values it wouldn’t fit the definition of a function anymore) but on the complex plane there isn’t really a “positive” direction. You would have to choose that first to make sure sqrt is defined as a function and you do that via the logarithm branch.
    So, just writing sqrt(-1) leaves ambiguity as you could either define it to give i or -i but writing e^(1/2 log(-1)) then everyone would just assume you use the default logarithm branch and the solution is i.




  • German here, I think the degree needed for getting a good job mostly depends on your study subject. One friend of mine studied chemistry at university and said that a PhD is required for a good job while another friend of mine studied computer science and got hired before even finishing his Bachelor’s degree. The company helped him in finishing his Bachelor’s degree while employing him.

    I studied math and got a Master of science, currently doing my PhD while working as a research assistant. I hear most math students leave uni after getting their Bachelor’s, similar to computer science students. Though it still wasn’t easy to get a research job for me. I think even within a study subject it depends on your field of research whether getting a job is easy or not.