Readit News logoReadit News
mtts commented on Is 2026 next year?   google.com/search?q=is+20... · Posted by u/kjhughes
lproven · 2 months ago
> it thinks

This is your mistake right here. It doesn't think. It's a text generator. It can no more think about what year it is than Swiftkey on your phone "thinks" what year it is when you type

NEXT YEAR WILL BE

and press the middle button.

mtts · 2 months ago
I'm as bearish as anyone on the current AI hype, but this particular ship has sailed. Research is revealing these humongous neural networks of weights for next token prediction to exhibit underlying structures that seem to map in some way to a form of knowledge about the world that is, however imperfectly, extracted from all the text they're trained on.

Arguing that this is meaningfully different from what happens in our own brains is not something I would personally be comfortable with.

mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
darkstorm2150 · 6 months ago
mtts · 6 months ago
I stand corrected. Can’t edit my original post, though.

Khan hides it well, though - it’s listed smack in the middle of sixth grade math and high school math courses. I skimmed through the list (again) and found some college math but not all. Maybe this is a new offering?

mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
danielvaughn · 6 months ago
This could’ve been written by me, it so closely matches my own experience. I know too well the “hit with a bag of bricks” realization that much of your professional life has been more or less you winging it. Math has that tendency of shining a bright ugly light on your real capability. It’s deeply humbling.

I’ve been using MathAcademy, trying to do at least one lesson each night after the kid is asleep. But instead of rote memorization, I sit with each problem until I truly and deeply understand it.

It’s going to be a long time before I’m mathematically competent, but there’s nowhere to go but up.

mtts · 6 months ago
Yeah, that’s my thinking now as well. It’s going to take an incredibly long time but truly understanding each problem is probably the only way to go.

Which is where this beats self study using books, I think. With a book, I can sort of wing it and think I understand something when I only do so very superficially whereas when you do the problems you truly learn what you understand and what you do not. And MathAcademy is only problems, so …

mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
lemonberry · 6 months ago
I'm surprised Kahn Academy hasn't been mentioned. It's free and from my experience pretty good. Though I'm not a parent or teacher so I can't speak from either of those viewpoints.
mtts · 6 months ago
Khan Academy last I checked went up to High School. MathAcademy goes up to undergrad math.
mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
SvenL · 6 months ago
If you need to get into math and are not really motivated I can recommend 3blue1Brown by Grant Sanderson (https://www.3blue1brown.com/). The best part is not only, that he explains math problems in an easy way, but also show how to approach math problems in general. I think it’s one of the best sources to start with Math.
mtts · 6 months ago
Not sure I’d want to use it as my only resource, but as supplementary material it’s excellent. He really explains concepts well (some better than others though, though this is likely a ymmv issue).
mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
milvld · 6 months ago
Any pointers on useful textbooks in this space? I seem to have difficulties finding one that is at the right level (not too easy, not too hard) or that provides a way to gauge your level and start accordingly at a later chapter or whatever.
mtts · 6 months ago
Depends on what you need, I suppose. This resource is said to be pretty good: https://www.susanrigetti.com/math

I decided start with Calculus I on MathAcademy because that was the last thing I did in High School. MathAcademy disagreed and told me to do PreCalculus and even bits of Algebra II first, but I knew better (MathAcademy was right and in hindsight I should’ve just started the Foundation courses to build up my pretty weak algebra skills again).

For Calculus I simply use the textbook that’s recommended at the link above. As far as I can tell, it’s good. I don’t do the problems, though - for that I use MathAcademy.

mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
mna_ · 6 months ago
You can discover your weaknesses yourself by doing problem sets then checking solutions. You'll notice what kinds of questions you keep getting wrong, then you make a note to study that area again or you do more problems in that area. You don't need a computer algorithm for this.
mtts · 6 months ago
Right, and then you’re expending mental energy on figuring out how to teach math (to yourself) instead of on the math itself. This is not wrong, and will likely even teach you a thing or two (and in fact it was how self-teaching math worked before this came along) but, to me at least, MathAcademy seems to be more efficient in getting you to do just the math and nothing else.
mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
viraptor · 6 months ago
> They don’t explain very much

That's not really the case. Each separate step of each lesson is explained and practiced many times. Repeated failures across multiple students are noticed and explanations reworked. If it's not enough, you can report your issues. And there are MA communities to check with if you really get stuck for some random reason.

mtts · 6 months ago
I’m currently doing the Calculus I course and while there are explanations interspersed throughout the problems, these mostly seem to be the bare minimum you need to work the problems. When I compare it to the calculus textbook I keep alongside it (Stewart’s “Calculus Early Transcendentals”) it barely seems enough.
mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
mtts · 6 months ago
FWIW my experiences with MathAcademy roughly overlap OP’s: it’s really hard work and adult life seriously interferes with making speedy progress (notice their own success stories are with teenagers who can devote hours upon hours on racing through the - very good - curriculum).

They say 1 point is equivalent to 1 minute of work and that you should earn at least 45 points a day. Well, for me 1 point is nowhere near 1 minute of work: I’m sloppy and sometimes downright stupid so it’s 1,5 minutes at best and often much, much more.

Banging your head against a wall every day for more than an hour (sometimes much more) just to get to what they consider to be the minimum of 45 points is no fun, and probably even counterproductive. I managed to keep it up for four months and made reasonable progress during that time (on getting back to where I was at the end of High School, 30 years ago) but it also burnt me out. I’ve now scaled it back to 30 minutes (not points!) a day. As a result my progress is now glacial.

Also, they’re very much of the “just do lots of problems and you’ll learn mathematic concepts and principles by osmosis” school of math instruction. For me I had to buy a textbook to get some extra explanation.

The good thing is that the problems seem well thought out and the spaced repetition system definitely works (for me, anyway).

I’m going to keep it up, because I have enough disposable income to afford it (though it is much too expensive for what it is) and I really want to bring my math skills up to a level where I can follow along the math in ML papers (and also because math, it turns out, is kind of elegant and interesting). I could go the self-study route, but then I’d have to spend time and effort guiding myself and figuring out what it is I needed to work on. If nothing else, MathAcademy is good at taking care of this for you so you can focus on the math itself.

mtts commented on 500 days of math   gmays.com/500-days-of-mat... · Posted by u/gmays
crinkly · 6 months ago
It matters who as well as that.

OU are accredited by Institute of Mathematics and its Applications, Institute of Physics and Royal Statistical Society for example (I am a member of two of these).

mtts · 6 months ago
But if you self study using the OU books, you yourself will not be accredited.

u/mtts

KarmaCake day1587February 22, 2008View Original