Grustaf

62 ms·

721.
by Grustaf 5y ago
> ask all the Palestinians inside of Israel to move there Why should they agree to this?
722.
by Grustaf 5y ago
Consider iOS development, if for no other reason than the amazing and freely available CS193p from Stanford. I took that route from 0 to FAANG in my 30s. As others have said, focus on a portfolio. Start with a course like C193p and then bui
723.
by Grustaf 5y ago
I really don't understand why you would say this, it's obviously false. Setting aside the subtler point of what it means to "have" something in mathematics: clearly only some vector spaces even have the potential to in
724.
by Grustaf 5y ago
It’s pretty easy to think about a normal three dimensional vector field representing the magnetic field, the trouble for me is when you combine the two into one tensor field. Looking at the link reminds me that this entity is used outside o
725.
by Grustaf 5y ago
That’s not how it works. Unless you explicitly give the vector space an inner product, it doesn’t have one. What you probably mean is that “you can always define an inner product” but that’s a very different statement. That’s not true eithe
726.
by Grustaf 5y ago
That looks pretty much equivalent, and they even have a version where F = E + B, just like in the youtube video. But my question is if this F, or the tensor version for that matter, has any physical meaning?
727.
by Grustaf 5y ago
> promising incommensurate storage in a palm-sized device Incommensurate with what, one might ask.
728.
by Grustaf 5y ago
He's not talking about the triplet or sextet, he means that a bivector has 5 degrees of freedom. That isn't correct either though, the basis consists of three unit bivectors, so they have at most 3 degrees of freedom.
729.
by Grustaf 5y ago
That's a very common criticism, but I don't think mathematics would work if you insisted on being 100% explicit all the time. Clear and short notation, that is just unambiguous enough, is a very important factor, without it books
730.
by Grustaf 5y ago
Haha that reminds me, got to put back that "No beggars or geometric albraists" sign!
731.
by Grustaf 5y ago
There's an urban legend at Swedish universities that American text book authors get paid by the word, and that's why their books are so incredibly verbose.
732.
by Grustaf 5y ago
Thanks for the tip!
733.
by Grustaf 5y ago
> But no, there is nothing new here beyond marketing. Yes, that's my sense too. Of course cross products, wedge products etc make sense and that's just standard mathematics, but the part that I haven't really seen the poin
734.
by Grustaf 5y ago
That books seems very interesting, but is it really about Geometric Algebra? I'm not talking about geometry in general, or differential geometry, which I'm a bit familiar with. And not Algebraic Geometry either, for that matter, w
735.
by Grustaf 5y ago
No, a vector is defined as an object that has certain properties, like addition and scalar multiplication. It's a very general, and abstract concept. There are vector spaces of functions, with infinite dimension, but there are also vec
736.
by Grustaf 5y ago
Ah, another geometric algebra evangelist? I can't figure out if GA actually adds anything substantial, or if it merely lets us write some equations in a more succinct fashion. But it certainly looks cool. As to vectors, obviously they
737.
by Grustaf 5y ago
Probably the best interactive introduction to Bezier paths you'll see today. Also check out his other posts!
738.
by Grustaf 5y ago
You could do worse than Russian literature. I did the opposite, moved to Russia instead of pursuing a career. Looking back, your order of doing things makes more sense...
739.
by Grustaf 5y ago
Haha this is even crazier than the original fake-mirroring usage!
740.
by Grustaf 5y ago
Is this a joke or a serious answer? Why would a headless mac need one more display that it doesn’t use?
741.
by Grustaf 5y ago
Thanks, that's actually an explanation. Seems crazy that there's no simpler solution!
742.
by Grustaf 5y ago
Is this the "explanation"? > To fix this problem, BetterDummy creates a virtual dummy display which you can then utilize as a mirror main. What is a "mirror main"?
743.
by Grustaf 5y ago
But this is a fake display, it doesn't actually show anything. I think the explanation only makes sense for people that already know what the issue is.
744.
by Grustaf 5y ago
What does it actually do? What is the point of a fake display that doesn't exist?
745.
by Grustaf 5y ago
The first thing to understand is that in your first 5-10 years of investing, you will do worse, probably much worse, than simply investing in a broad index. Investing, seen as a skill, is pretty unique in being in that you need to become be
746.
by Grustaf 5y ago
And hunter gatherers worked even shorter hours. Agriculture is a trap!
747.
by Grustaf 5y ago
It's not really that "ce is silent", it's that cester is pronounced "ster". It's extremely common in languages that long, old roots like that are elided in speak - in French they basically always elide the
748.
by Grustaf 5y ago
All three, but the last two are schwas: /ˈlʌfbərə/
749.
by Grustaf 5y ago
"rce" is not a syllable here, so it's not that relevant. It's Wor + cester, and cester is always pronounced ster. So it's actually not very surprising.
750.
by Grustaf 5y ago
Clearly it's garum day on HN.

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