bunje

8 ms·

1. 1.▲
   by bunje 4y ago

   How quickly do you think stopping the sanctions would bring the energy prices down? Russia already stopped gas exports to several countries.
2. 2.▲
   by bunje 4y ago

   In university I learned about the simplex method which can be applied to linear programming. I don't know if it's used by modern solvers.
3. 3.▲
   by bunje 5y ago

   I did software engineering for 3 years after graduation. Now I teach mathematics in a high school since '20. Software engineering was very stressful for me and I also wanted to sync holidays with my kids. Parents seem to value my backg
4. 4.▲
   by bunje 5y ago

   "Mathematics is the part of physics where experiments are cheap." - V.I. Arnold
5. 5.▲
   by bunje 5y ago

   QR factorization is cool because it is part of QR iteration and you can use it to find all zeros of a polynomial at once.
6. 6.▲
   by bunje 5y ago

   Solutions to differential equations belong to infinite dimensional function spaces unless discretized.
7. 7.▲
   by bunje 5y ago

   I don't understand, there were over 50k non-covid deaths in the twice vaccinated and around 500 covid deaths. That sounds significant, or is it due to the age distribution of twice vaccinated?
8. 8.▲
   by bunje 5y ago

   I think in the past journals prohibiting the use of preprint archives was more common.
9. 9.▲
   by bunje 5y ago

   How are the theories incompatible? My basic understanding is that GR describes how the space looks like and Standard Model describes fields defined in this space.
10. 10.▲
    by bunje 5y ago

    Colon cancer risk is increased by 28% due to excessive consumption of red meat.
11. 11.▲
    by bunje 5y ago

    I would guess that it is much more dangerous to modify a modern car because they utilize nontrivial shell geometry to improve the rigidity or to reduce weight. When I was attending driving lessons, my teacher claimed that the specific shape
12. 12.▲
    by bunje 5y ago

    I think variational problems are more naturally understood through energy minimization. You start with the energy of the system and try to minimize it via derivatives. Then you arrive at a variational problem. The differential equation is t
13. 13.▲
    by bunje 5y ago

    Finite differences are simple in cubes and domains that can be mapped to one. Not so much in an arbitrary tetrahedral mesh.
14. 14.▲
    by bunje 6y ago

    As a teacher, I'd like to use this in presentation slides, i.e. pause the output at specific times and continue only after a button is pressed. Does anyone know if there exists a tool, e.g., to automatically pause MP4 playback at speci
15. 15.▲
    by bunje 6y ago

    I cannot understand what you are implying. Can you be more specific?
16. 16.▲
    by bunje 6y ago

    Why is that?
17. 17.▲
    by bunje 6y ago

    I checked some of the references at CDC web page and seems that I won't die any time soon drinking one beer a day (male, non-smoker). E.g., https://pubmed.ncbi.nlm.nih.gov/26286216/
18. 18.▲
    by bunje 6y ago

    So you say we should specify when 2 means number two and when it means the constant function? How does it help?
19. 19.▲
    by bunje 6y ago

    I've analyzed performance data from air lubrication vessels with some retrofits included. Frankly, never witnessed over 5% gain. At specific velocity range the gain could be 5% on average if the installation has been really successful.
20. 20.▲
    by bunje 6y ago

    So you need a special editor to write code in Julia?
21. 21.▲
    by bunje 6y ago

    Currently my greatest concern is the inability of Julia to provide stability even after they've reached 1.0. On paper 1.0 is a LTS release and still supported, but how many packages actually support it anymore? There seems to be no gui
22. 22.▲
    by bunje 6y ago

    Yes, I agree. As a mathematician, I spend lots of time trying to find the correct definitions with only a rough idea what I'm trying to prove (the theorem).
23. 23.▲
    by bunje 6y ago

    You can accept a gift. It's also possible for someone to give a grant. But I'm not sure how they would work out in case of open source. I know that people write books using a grant.
24. 24.▲
    by bunje 6y ago

    Again, I'm not questioning that. Mathematically, does "tell people to use masks" imply "less new cases"? E.g., what if people decide to spend 5x more time with other people on average due to a mask requirement makin
25. 25.▲
    by bunje 6y ago

    It's explained in point two. We're talking about large quantities of people here. Technically mask blocks droplets. But if you tell everyone to use a mask, does it reduce transmission on average?
26. 26.▲
    by bunje 6y ago

    This was really interesting: https://m.youtube.com/watch?v=isPkpZehssY
27. 27.▲
    by bunje 6y ago

    I once did an experiment with a rock containing uranium and a Geiger counter. The noise stopped immediately after putting printing paper between them and resumed after taking it off.
28. 28.▲
    by bunje 6y ago

    I have not so far heard any compelling arguments for using other than tetrahedral or hexahedral meshes in finite element computations. I know that there is a lot of research going on but the motivation is not clear to me. Error estimates ar
29. 29.▲
    by bunje 6y ago

    I've heard this can cause methanol blindness and increase in black market but who knows. Soon we will learn.
30. 30.▲
    by bunje 6y ago

    I've been receiving the influenza vaccination every year. It wouldn't be a huge problem to receive also SARS-CoV-2 vaccination on top of that. Also at some point my kid received Rota-virus vaccinations every 3-6 months. It would b