3 ms·
English/American style of explanation fascinates me. First, they show some algebra formulas and mention dot product and cross product. But then they start intr
by deepsun 5y ago
English/American style of explanation fascinates me.
First, they show some algebra formulas and mention dot product and cross product. But then they start introducing a definition of a vector! With images!
Why, oh why do you need to waste yours and reader's time to introduce basic definitions, if any reader of the article definitely knows that? If they haven't, they wouldn't be able to read the first paragraph at all.
PS: Russian style of explanation is more like: "Here's the essence of my idea, maybe with some leading pre-definitions, but definitely without basics. If you are here, you probably is as curious as I am to already know/heard of all the basics."
In total, there's more material, because it's easier to write and read it, as author didn't need to explain 101s to PhDs.
- IshKebab 5y agoI definitely agree but there's no way this is "English/American style". It's because people have grand plans of making their article/book accessible to everyone, and they start off explaining e.g. what a vector is, but pretty soon realise the don't want to write an entire vector algebra textbook so they seamlessly give up and jump straight into Stoke's theorem or whatever. I read a Synopsys simulator manual that explained what double clicking was.
- deepsun 5y agoProbably. But why would so many people want to make their article/book accessible to everyone. Let's accept the fact that some topics, like vector algebra, are just not that interesting to everyone.
- fsloth 5y agoVector algebra is at the heart of a fairly large industry - games. I don't think there can be enough of accessible and understandable content from that point of view.
- mferraro89 5y agoDid this article at some point give up and jump straight into something too difficult?
- garmaine 5y agoWhen you are writing to a general audience you can't assume what the reader knows or does not know.
- deepsun 5y agoI disagree -- whenever you write anything, you always assume something about your audience. In other words, there's no such thing as "general audience". E.g. in OP's article, people are already interested in Math, otherwise they wouldn't click to the article, yet alone got through the first paragraph.
- j7ake 5y agoDo you have an example of "Russian style explanation"?
- vitorsr 5y agoConsider Kolmogorov’s entire Foundations of the Theory of Probability is 71 pages long [1]. [1] https://archive.org/details/foundationsofthe00kolm https://archive.org/details/foundationsofthe00kolm
- jjgreen 5y ago... and that he revolutionised the understanding of turbulence in [1] which is four pages long. [1] The local structure of turbulence in incompressible viscous fluids at very large Reynolds numbers, Dokl. Akad. Nauk. SSSR 30, 299-303. Reprinted in Proc. R. Soc. London A434, 9-13 (1991).
- Grustaf 5y agoThere's an urban legend at Swedish universities that American text book authors get paid by the word, and that's why their books are so incredibly verbose.
- jabl 5y agoWhen I studied physics at the university, our undergraduate textbooks where relatively thin volumes (e.g. Alonso&Finn I-III), whereas the engineering students had these massive textbooks (Young&Freedman etc.). When looking into these massive tomes, yes, they spend a lot of words, but also they apparently don't expect the reader to be able to apply calculus. So instead of showing, say, Coulomb's law, and assuming the reader is capable of integrating to calculate the interaction between a point charge and a line, they have a section describing the interaction between two point charges. Then an entirely separate section describing the interaction between a point charge and a line, with the formula as given without actually explaining that, hey, this formula, you know, results if we take the fundamental law and do this and that. Incredibly infuriating.
- puzzledobserver 5y ago(I have only briefly skimmed the article, but ...) Material such as this serves to remind the reader of what they already know, and contextualize it in a way that is relevant to this article. The article begins by telling the reader, "We all know what scalars and vectors are---here they are---but have you wondered what if ...", and taking the reader beyond. The introduction which you seem to find objectionable is only a small part of a much longer article. In addition, different readers have different, mildly different notation styles. These introductory blobs inform the reader of the language in the article, and are essentially a friendly statement of definitions. A third purpose is rhetorical: readers sometimes get stuck while reading text, and these parts of the article work as anchor points where they can loop back and "synchronize" with the writer.
- mferraro89 5y agoha, thank you for your honest feedback. My intended audience is not PhDs or math majors, it is high school physics teachers, practicing engineers, programmers, precocious high school students, etc. Many of these people benefit from some definitions. I include 3 sentences defining a scalar so that I could introduce the concept of grade. I include a few sentences defining a vector because just read the comments here and you'll see there are many definitions of vector and I want to specifically call out the one I care about in this post. I am also using a nonstandard, color-based notation throughout the article so it is helpful to take a concept that people already know just to demonstrate my notation. This also lets me introduce the 3D interactive illustrations. Did you read the rest of the article or were these two definitions so objectionable that you quit?