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Git from the bottom up, by John Wiegley.
If dollar signs are good enough for Don Knuth, they are good enough for me! — Nick Higham
I too mostly uses $$ for display style, instead of the recommend \[ opening brackets. This may well be because I used to write plain $\TeX$ at some point, or Context for what matters, but it is also mostly a personal taste. #tex
Overload Functions in Python. #python
A task manager for the command line. #racket
Programming is essentially about certain ‘data structures’ and functions between them. Algebra is essentially about certain ‘algebraic structures’ and functions between them. Starting with such familiar algebraic structures as groups and rings algebraists have developed a wider notion of algebraic structure (or ‘algebra’) which includes these as examples and also includes many of the entities which in the computer context are thought of as data structures. — The Structures of Computation and the Mathematical Structure of Nature
People think focus means saying yes to the thing you’ve got to focus on. But that’s not what it means at all. It means saying no to the hundred other good ideas that there are. You have to pick carefully. I’m actually as proud of the things we haven’t done as the things I have done. Innovation is saying ‘no’ to 1,000 things. — Steve Jobs
De même, j’entends des histoires interminables pour la visioconférence surchargée, alors qu’en gros en général on a juste besoin d’une audioconférence (c’est sympa de voir les binettes des collègues, mais non nécessaire), plus des envois de documents. — Du mauvais usage des outils numériques et des fonctionnalités inutiles