@predict_addict What does it matter if its not a serious physics textbook? She spent four months studying a topic she wanted to study, and it looks like she's going to keep studying physics.
It seems like a win to me.
@FreedomCat14@katienotopoulos You can still put books on it, but you wouldn't be able to get them from a library that has DRM.
If you can buy books without drm, you can just manually out them on your kindle using the USB cord.
I'm taking a calculus class right now that has open book tests. The only way to do the test is to try to solve the problems by looking at the provided worked examples.
The problems are also all applied physics. Physics we didn't take, so we don't understand it.
It's been awful compared to what I've done on MA.
Most math tools teach to the test.
Families kept nominating @_MathAcademy_ because it teaches to the kid.
2026 Eddy Award Winner - Resource of the Year.
@justinskycak@exojason shared, "This recognition reinforces our commitment to helping every student achieve their fullest mathematical potential."
Our Math for ML course is getting so much love we decided to make one for physics as well.
Two, actually. Released today.
The math behind vibrations/waves, E&M, diffusion & heat equations, dynamical systems, signal analysis, uncertainty propagation, computational modeling, ...
There's also a third one on our radar: the math behind quantum mechanics, field theory, continuum mechanics, and modern mathematical physics.
Diablo 2 is still a great game. You'll have more fun with it with friends than you would with 4 in my opinion. Me and my friends played through 4 once, but have been playing through 2 for 25 years.
2 is especially good if you and friends want to play through together and share gear along the way.
@justinskycak Is there any reason for people who aren't going to take the sats to take these courses? Is there material in them that isn't in the MF series?
Our DiffEq launch is special for me because I've been frustrated with DE pedagogy for a long time. This is the course that I wish I and all of my tutoring students had taken.
When I took DiffEq in undergrad, it was taught as part of an Abstract Algebra class.
Abstract Algebra. Let that sink in.
The official title of the course was Algebra 1, and the way that DiffEq was taught in Algebra 1 was kind of like this:
"Speaking of algebraic structures, let's learn about metric spaces. By the way, differential equations is a thing you can do in metric spaces. Linear independence, Wronskian, yadda yadda. Memorize these proofs. Okay, moving on!"
They said were doing some kind of revamp / reorganization of their math courses, and maybe they were trying to do some kind of "integrated" sequence.
But the bottom line is they gave DiffEq responsibilities to a hardcore algebraist who didn't want to teach it -- so he didn't. Not really.
Now, I knew my own DiffEq experience was completely whacko, straight out of Alice in Wonderland, but I didn't expect that so many other people's DiffEq experiences would be whacko in a different way.
When I did a bunch of tutoring, and talked to people taking DE elsewhere, I realized that pretty much everyone who teaches DiffEq has a different conception of what DiffEq covers.
I mean, sure, there's a common thread up through 2nd-order homogeneous ODEs via characteristic polynomial, but beyond that, DiffEq class is like a box of chocolates and you never know what you're gonna get.
I had always assumed that most people taking DE courses were learning it fairly comprehensively: integrating factors, undetermined coefficients, variation of parameters, oscillators, Cauchy-Euler, Bernoulli, systems, Runge-Kutta, power series solutions, Laplace transforms, Fourier series, eigenfunctions, Lotka-Volterra (predatory-prey model), phase portraits, etc.
But what would typically happen instead is, after covering those 2nd-order homogeneous ODEs via characteristic polynomial, the course would shoot off into whatever direction was most applicable to the instructor's research interest.
And it wouldn't cover all the other foundational stuff that you would reasonably be expected to know if you took a solid DE course.
Anyway, it feels nice to finally put out a DiffEq course that's comprehensive and well-scaffolded with plenty of concrete examples.
@iky_fwjett During my diagnosis, I tried to justify what the psych called black and white thinking as abstract thought, and that it just appears binary because it's making a decision between two things, but that the decision making itself is abstract and hidden by my not explaining it.
A group i used to know once criticized me after they asked if I were a male feminist. I said I was a humanist, and women are human, so in that regard, I think I would be considered a feminist. They then tried to overload the term with their own sexist meaning, but I just kept saying humanism includes women.
Day #63
I have to slow down for the next week while I complete my end of term reports, and take some tests.
I fell today on ice and have a shoulder injury. It's really going to affect how fast I can write, so I expect to have a lot less time for math until the end of the term.
@HabitGraph
@grok @MandrakeRa2782 @Kekius_Sage@grok What contributions would she have to make to be comparable to Einstein?
Has she produced anything paradigm shifting yet, comparable to relativity?