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Ask HN: What are you learning?

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Re: Ask HN: What are you learning?

#861

Post by viridi »

febin wrote: post #618
Twisol wrote: post #275

I'm working through Aluffi's Algebra: Chapter Zero , which covers abstract algebra (groups, fields, vector spaces, etc.) with category theoretic foundations. I took undergraduate algebra several years ago, and I'm really interested in category theory from a compositionality perspective, so this is a good opportunity to brush up on both topics. Aluffi is really well-written. It assumes some degree of mathematical matu…

I am curious about category theory? Do you have any resources on where it can be applied?

Perhaps Category Theory for Programmers?

https://bartoszmilewski.com/2014/10/28/category-theory-for-p...

There is also a playlist on Youtube

https://www.youtube.com/watch?v=I8LbkfSSR58&list=PLbgaMIhjbm...

Re: Ask HN: What are you learning?

#862

Post by Cthulhu_ »

I got a new job not long ago which has given me a lot of time to both learn and come up with a new application; I'm learning a couple things on-the-job:

  - Go & its entire ecosystem
  - Packaging & deployment via RPM
  - Layout & design a web ui (this was done by someone else in my previous jobs)
  - Personal project management (I'm a one-man team atm)
  - Code generation via Swagger
  - Architecture & technology choices and documenting them as I go
  - Working from home full-time (not by choice) and staying productive
  - Warhammer 40K

Re: Ask HN: What are you learning?

#863

Post by jmeister »

thomas2718 wrote: post #824

I have a cranky uncle who sends an email newsletter with links. Most of the links are conspiracy theories in my eyes. Some of them are about the climate. So to be able to make reasonable judgements, I've decided to learn about the science of climate. The IPCC makes all their reports available. I've started with the technical summary (84 pages, two-column). Most parts of it are well written and understandable with som…

To form a balanced opinion, wouldn’t you want to read CC critical literature too?

Re: Ask HN: What are you learning?

#864

Post by jmeister »

viburnum wrote: post #105
DavidSJ wrote: post #92

Reading: The General Theory of Employment, Interest, and Money by Keynes. Studying: The Molecular Biology of the Cell by Alberts et al and Advanced Macroeconomics by Romer.

Geoff Mann wrote an excellent free guide to the GT. I had just finished reading Keynes when I came across it and reading it really made it “stick.” https://www.versobooks.com/books/2499-the-general-theory-of-...

Thanks!

Re: Ask HN: What are you learning?

#865

Post by jmeister »

juped wrote: post #592

Studying general relativity, since it's the flagship application of my field of mathematics (differential geometry) and yet I only know the basics. It is, of course, the most elegant scientific theory of all time.

I’ve been wanting to ask this a differential geometer - what do you think of Sussman and Wisdom’s book as a DE intro for an CS/applied math person? Thanks!

https://www.amazon.com/Functional-Differential-Geometry-MIT-...

Re: Ask HN: What are you learning?

#867

Post by juped »

jmeister wrote: post #865
juped wrote: post #592

Studying general relativity, since it's the flagship application of my field of mathematics (differential geometry) and yet I only know the basics. It is, of course, the most elegant scientific theory of all time.

I’ve been wanting to ask this a differential geometer - what do you think of Sussman and Wisdom’s book as a DE intro for an CS/applied math person? Thanks! https://www.amazon.com/Functional-Differential-Geometry-MIT-...

Never read it, but the preview pages look pretty neat. I might pick it up for a fun read. Might want to pair it with something like do Carmo's Differential Geometry of Curves and Surfaces (which is quite accessible) for the mathematical side.

Re: Ask HN: What are you learning?

#869

Post by feiss »

enhdless wrote: post #338

I'm trying to learn to draw. I feel comfortable enough with my technical skills where I feel like I can pick up a new language or framework with relative ease, so I want to switch gears and improve my drawing and visual communication skills. I believe that any project can benefit from a compelling visual component. For now, I've been trying to start slow and just have fun; for example, telling myself to do three quic…

The pure act of representional drawing (drawing what you see, "copying it") needs just two basic actions: measuring and comparing.

For that, you have to teach yourself how to see things in the most objective way possible, without meaning. Don't see a dog or a head or a leg, but just a mass of shapes, lines, areas. Measure them, compare them. It's all about that.

People think drawing is in the hand, but it is in the eyes and in learning how to see things differently.

Good luck! It can be very therapeutic and rewarding.

Re: Ask HN: What are you learning?

#870

Post by throw1234651234 »

Areading314 wrote: post #858
throw1234651234 wrote: post #805

Earlier quoted context omitted.

Yea, right, until you try to get perspective correct. If you understand this, you are a genius: https://crafts.stackexchange.com/questions/3316/how-to-measu...

Don't worry about perspective drawing. This is a much more technical subject, separate from the skill of "drawing what you see".

I want to be able to draw from imagination. Drawing from real life has no appeal to me (though drawing realistically does).
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