Maths, properly.
There is no such thing
Care to explain?
Ask HN: What are topics that you want to learn but haven't gotten around to?
41–50 of 56 posts
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#423D modeling in Blender3D
I started doing this recently, but I want to use a laptop. Blender seems better suited to a full size keyboard and proper mouse. Does anyone use it with a laptop keyboard and trackpad?
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#43I'd really like to get into hobby electronics, specifically DIY guitar pedal design. There's a great subreddit, /r/diypedals, which I've been lurking for a while, I just haven't made the dive into buying my first kit and soldering equipment. Does anyone here on HN have any tips or words of wisdom?
I like this Weller document: https://www.astro.umd.edu/~harris/docs/WellerSoldering.pdf
This is aimed at people soldering through hole, not surface mount, components.
Really, it's not that hard. I'm clumsy, but I could solder pretty well. Buy an iron. Get hold of old scrap circuit boards and some cheap components and some solder. For beginners you'll want to try to get tin/lead solder with built in flux.
People will recommend some very expensive stations, and those are nice, but you don't really need them. Just get something for electronics work, and avoid the cheapest products.
Apply a tiny bit of solder to the hot tip, put the tip on the joint, apply the solder, remove the solder, remove the tip. You're heating the joint which heats the solder. You need to do this somewhat rapidly to avoid damaging the pads and overheating the solder.
When you buy a kit it'll come with wire. That wire is probably going to use PVC insulation. You'll need to practice soldering PVC wire. You can buy a whole reel for quite cheap. PVC insulation will "shrink back" when heated. Practice will help. (As will rubber sleeving to go over those joints. Here's one example of a product, but there are many: https://www.canford.co.uk/Products/39-420_HELLERMANN-SLEEVES...)
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#44In no particular order:
1. Add Python programming to my arsenal of programming languages.
2. Project and People management
3. Data Structures
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#45Earlier quoted context omitted.
There is no such thing
Care to explain?
I take properly to mean a structured approach to full understanding. However, the totality of math is beyond any single person. There are multiple approaches that all drift of in to different directions.
In short. There is no final Aha moment for maths at large. There are however a shit load of specific aha moments down the path
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#46A front-end JS framework. Every time I look in to it there's 328 new ones and 5,149 reasons not to use the old one.
React? There seems to be a consensus forming that it's the best. You can get started really quickly with create-react-app
Even if you don't end up using React itself, alot of libraries are similar in concept. By learning one you can gain the concepts to use many. For example vue.js is really easy to pick up if you already know react.
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#47I'm totally fine with it, but this post looks a lot like market research to me!
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#483D modeling in Blender3D
I started doing this recently, but I want to use a laptop. Blender seems better suited to a full size keyboard and proper mouse. Does anyone use it with a laptop keyboard and trackpad?
You mean requirement for numpad and middle button click?
https://blender.stackexchange.com/questions/124/how-to-emula...
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#49Not blockchain
Re: Ask HN: What are topics that you want to learn but haven't gotten around to?
#503D modeling in Blender3D
I don't use blender, so I'm not sure if it is highly specialized for a particular application. However, Autodesk Fusion 360 is a perfectly capable program as well, and has very favorable licensing if you are a hobbyist. They've done a really good job with first party tutorials, both in written copy, and videos. It seems to be one of the hottest tools in the 3D printing community right now, so the community is robust for support as well.
Where it really shines though is that anything you can make happen in the GUI, you can also make happen in python. In fact, I believe it is possible to simply "trace" what you are doing in the GUI, and use that as a guide for how to do it in your own custom code. Thats the "Fusion" part of the name. You can do the actual modeling with code. You can also create more gui features. For instance, you can make a button on the toolbar that, once clicked, checks for user selected geometry. If any is found, do operation X upon that geometry. This pattern alone makes me think that Fusion 360 is an excellent tool to approach CAD from the perspective of a coder.