Taking Vector Transposes Seriously | Jiahao Chen | JuliaCon 2017

Why HN readers recommended it

Strongly recommended for anyone working with vectors for its clear take on how they should be treated in types.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

The Julia Programming Language

Topic

vector transposes in type systems

Format

talk

Level

advanced

HN recommenders in dataset

3

HN mentions in dataset

5

Recommendation years in dataset

2018–2022

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• Addendum: Also really good is this video about how one should treat vectors and matrices in a type system. Has good lessons for python, R, and Matlab. Seriously anyone who does anything with vectors should watch this. [VIDEO]

• > Purist test The short answer is. Yes, but if your PL treats it that way you will wind up in trouble [0]. The long answer is: [VIDEO] (but seriously take the time to watch this, it's fantastic). [0] Separately C- and often C-derived languages/frameworks …

• I happened to be the other way, I learned first that matrices were linear transformations and, being thick-headed, it took me a really long time to understand that matrices could also be used as "dumb excel spreadsheets". there's a fantastic historiography of linear algebra and …