I think its a clear conflict and shareholders should protest, but this happens at every level of the economy. I used to work buying small businesses. Its common for business owners to also own the building in a separate LLC. And its great to hear them complain about how they always get paid last, when they have been paid every month through rent.
St. Louis, Missouri. You have a two top schools, WashU and SLU, along with several other strong colleges. The city has become the Chess capital of the US. And you can buy a house for $450K in a walkable neighborhood that would cost well over $1M anywhere else in the US. A very underrated city.
I am looking for office space right now, and I left the local WeWork office 30 minutes ago. Its very simple, they do things a lot better. That is the space I want to rent. When I talk to cheaper office's they feel cheaper. Also their contracts are simple. I want to think about my business, not building out an office space. Finally, the fact that I now have a meeting room I can reserve in multiple cities across the globe makes it almost a no brainier.
The drawback? They really know how to jam a lot of people into a very small space, which might be why their valuation is so high.
Same here. I'm on a quest to run myself through the equivalent of a standard Calc I, Calc II, Calc III, Linear Algebra sequence, and I've managed to find great Youtube resources for all of those things (and more). It's times like these that you marvel at how awesome the Internet can be at its best. :-)
Have you seen the Essence of Linear Algebra video series posted to HN a few days ago? Seeing the geometric transformations animated gives you intuition hard to develop otherwise:
Yep. Watched the first 3 or 4 of those right after they were posted. Good stuff. I'm not really focusing on Linear Algebra yet, but definitely looking forward to digging into those and the Gilbert Strang ones on LA.
Don't overlook mathematical analysis -- real analysis, complex analysis, etc -- that's another big leg of the mathematical stool, with geometrical foundations underpinning it all.
As you self-study and progress into upper level math, you'll come across abstract and unfamiliar topics you didn't learn about in calculus/algebra -- and sometimes it's hard to pin down what category the topic falls under -- when that happens, the topic will often be related to analysis, group theory, or topology (courses taken by math majors but not as widely known).
Hey I'd love to hear about how your learning experience is going! Care to share your experiences?
I'm about to start a self-directed learning exercise focused on CS related math. I've never used online resources to learn / brush up on complex topics before so I'm a bit unsure what to expect.
So here's how it's gone for me so far (including some background about my non-online maths education for context).
I only took through Algebra II in high-school, but honestly, I went to Algebra II class maybe 4 or 5 times all year, never did any of the homework, and took maybe 1 test. Needless to say I failed it. That was the year I was too busy being "mr rebel badass guy" to worry about studying, plus I didn't need the class to graduate, so I just didn't give a flip. OTOH, I did really well in H.S. Geometry the year before.
Anyway, when I started college I needed some maths refresher, so I took 2 semesters of College Algebra, and 2 semesters of Pre-Calculus. I also had a 1 semester Discrete Math class. I started Calc I but I dropped out about halfway through that semester.
Fast forward about 6 or 7 years, and I decided to go back to school. Having forgotten all the maths stuff I had learned before, I took College Algebra yet again, as well as Discrete Math (I don't remember now why I took Discrete again. It might be because my earlier credit was too old to transfer).
Fast forward another 7 years or so, and I've again forgotten what maths I'd learned before. But by now Khan Academy exists and that's where the online stuff kicks in.
So I've fiddled around on KA a bit over the past few years, just trying to keep up some of the really basic algebra stuff that you forget if you don't use (rationalizing denominators, factoring, etc., etc.) But that was always kind of hit or miss and piecemeal, not really a focused thing.
Fast forward just a hair more and Coursera and the like have come into being. I started taking the Johns Hopkins sequence on Data Science, and I also took the Andrew Ng class on Machine Learning. That whole experience reminded me "I've always meant to get serious about this maths thing".
Notably I'd never taken a proper course on statistics and probability, so I wanted to fill that gap. So on Coursera I took the first 2 or 3 classes in that Duke "Statistics With R" sequence (I plan to finish the whole thing eventually) to pick up some basic stats knowledge. It also dovetailed well with the first few classes in the JHU Data Science thing, as both use R. And looking back on that, from where I am now, I highly recommend both the Duke sequence (which is more about the stats and less about R) and the JHU sequence (which is arguably more about R than stats). I think they complement each other well, and if you do both you'll learn a decent amount about basic stats.
This is also where I discovered Professor Leonard on Youtube. I was searching for some stats videos to complement the other stuff I was doing, and found his videos. I never did go through the entire Stats class he put up, but I was impressed enough with his teaching style to bookmark his channel for future reference.
Anyway, at some point I hit a lull in things and decided "now is as good a time as any to go back through Calc I with an eye towards working through all of Calc I, Calc II, Calc III and Linear Algebra". I started the MOOCulus course on Coursera, and while I like certain things about it, I feel like the content is too "choppy" since it's broken up into such short segments. That was when I went back to the Professor Leonard channel and started going through his Calc I class. And I'm just now about up to where I was at when I dropped out of school the first time. Only 20 years later...
Anyway, there was other stuff mixed in there too, including offline stuff with actual paper books. But as far as the online stuff goes, I also found Youtube channel called MathBFF that has some really good videos (at least for Calculus topics), and I also watched a chunk of the "Big Picture of Calculus" videos linked to above.
So from here out, my plan is to continue through the Professor Leonard series of Calc I, II and III (and supplementing the videos with problems from dead-tree books) and then move on to Linear Algebra, probably using a combination of Gilbert Strang's videos and the "Essence of Linear Algebra" ones that were posted on HN a couple of days ago. I might also consult the Khan Academy videos on some of this stuff.
And to go back to dead-tree books for a minute... I have this weird obsession with mathematics books. I kindof collect them. I guess because in the back of my head, all these years, I've had that "I'll get serious about maths one day" thing going on. So I'm forever buying maths texts at used bookstores, or on Amazon, or random places. I have shelves and shelves of books on all sorts of mathematics stuff to consult. So my self-learning definitely involves a heavy dose of both online resources and meatspace stuff.
If I had to summarize, I guess I'd just re-iterate that the resources you need to learn a LOT of maths is available online, mostly for free. I mean, there's a TON of stuff out there, including a lot I didn't mention above. And even though I'm mainly interested just in the stuff I need to for AI/ML, I did some poking around on Youtube out of curiosity and found that you can find videos on just about every math topic there is: abstract algebra, complex analysis, topology, group theory, measure theory, etc., etc. It really is an amazing time we live in. :-)
Check out Linear Algebra: Foundations to Frontiers (https://www.edx.org/course/linear-algebra-foundations-fronti...), it's being offered self paced by edx, and you can download the lecture notes for free at http://www.ulaff.net. When I took the course two years ago I liked how the lecturer will discuss basic concepts in the lectures but also gives additional material related to state of the art research being done in the field.
There also used to be a course called Coding the Matrix, I'm not sure if it is still being offered online. The lecture notes form a book of the same title, which is available for less than 10$ (Kindle).
Yeah, part of my motivation for doing a lot of maths study is exactly that I took that Andrew Ng class. You can get through the class without knowing multi-variable calculus and linear algebra and what-not, but that class made it clear to me that learning that stuff would be hugely beneficial.
I take more pride/pleasure by understanding through reading. Somehow I don't trust my brain not to go into a visual form of rote learning by replicating what the video said.
Books are a bit more painful, but forces my brain to actually make sense of abstractions actively instead of passively (which is not always the case on videos, but a lot more probable).
For those of you who don't know, felling trees is incredibly dangerous. They store immense energy in a not terribly structurally safe form. Don't do it if you don't know what you are doing.
My dad always insists on cutting them himself and watching it always gave me a heart attack. That vid is basically what I play through in my head the whole time. So far nothing happened but man.
Is it pure chance that this was posted only two or three days after I watched it along with a few other e to pi = -1 videos?
Randomness aside. 3blue1brown makes some wonderful math videos that I find really explain the intuitiveness of some of the ideas. I was unfortunately cursed with a math teacher who for whatever reason required us to memorize until we passed the test. Imaginary numbers were taught as "something that will help you in college"
Richard Feynman used to go up to people all the time and he'd say "You won't believe what happened to me today... you won't believe what happened to me" and people would say "What?" and he'd say "Absolutely nothing".
I agree wholeheartedly with the quality assessment of 3blue1brown videos. All mathematics should be clear and intuitive, by definition :)
> All mathematics should be clear and intuitive, by definition :)
I disagree with this completely, and so does all of higher mathematics. It's neither clear nor intuitive. In fact, as soon as you start learning about infinities (Calc I), intuition becomes hit and miss.
No, another link to 3Blue1Brown was posted earlier this week and hit the front page. My basic assumption is that when a topic is posted, people will explore that topic and, if it's interesting enough, post further content about that topic.
Stupid question, but my Mom lives in a really rural area. Pays quite a bit for internet and is charged by the MB. Can we ask Microsoft to pay for their bandwidth usage?
Since upgrading to Windows 10 she's been hit with $200 in overages.
I worked at an ISP that charges as much as $25/GB for usage, and has tiny monthly usage caps (as low at 10GB/mo) and there is no other choice for our customers.
Every time a large iOS, MacOS or Windows update goes live, we can literally see the difference in the overages people pay. It's a big problem that lots of people don't understand.
Now you will also see the uplink usage go up, potentially much higher, since Windows 10 is torrenting updates from client machines without asking the user.
This seems to be one of the real costs of upgrading to the latest version of Windows. In this case your mom has to pay the bills, but in general I'm curious how long will it take for ISPs to launch a solid campaign against Microsoft, like they did with Netflix.
How is this a real cost, is there an estimate of how many bytes are sent and received and at what interval? If it was anywhere in the thousands of megabytes regularly, maybe that's the real cost but that's just an assumption.
Not quite sure what is your point here. The amount of megabytes transferred each month does not have to be any particular fixed number to become a burden for the user, or the ISP. We can see that at least in one case (and probably many more) such a cost can exceed $200. All of this without user's consent.
Microsoft, please get your stuff together. Hire some privacy aware people.
I finally saw the bill. From the moment she started downloading Windows 10 to the moment I told her to shut the internet off, she used 20 gigs. That's ridiculous. And there is only one computer in the house. No other devices use internet.
So, are you going to continue supporting Microsoft by installing Windows 7, or are you going to put your mom on an easy linux distro like ElementaryOS [0] or Kubuntu? [1]
It hasn't even been out that long, so what kind of data amount are we talking about? Century Links 1Gbps has told multiple friends, and friends of friends that they absolutely enforce the 250GB/month limit. That's 33.33 minutes @ 1Gbps before you've hit the cap. That's untenable. XBox games are hitting 100GB each. And now the OS is pushing and pulling maybe 10% of this cap? Umm, yeah, good luck with that.
I'm sure phoning home only uses a small amount of data. But downloading the update and then sharing the update with others is where I think she got in trouble. Sharing is now turned off and the data is starting to normalize.
I know I won't get any money back. But I wonder how many other people ended up paying more for Windows 10 by downloading it then had they been able to purchase it on a DVD.
mobile providers in australia bill in 1MB minimum sessions (with quite short session times) that would add up pretty quickly with these wonderful backend connections.
I think at this point she's has closer to a gig of data. Honestly the only thing I can think is that the download itself plus seeding it to other computers nearby got her to that number. But that's a guess.
I hate that Bloomberg is trying to be Buzzfeed. This could be the most amazing though provoking article of all time, but I'm not going to read it when it starts with an animated Krugman GIF
