Annotated links are a feature I recently added to ZTL. Though a small addition, it already made my note writing much more satisfying. Similar to footnotes (appended to an excerpt), they are attached to an outgoing link. But better they can be collected at the referenced target and hence provides super useful context, when looking through incoming links or bibliography.
Every student studying a field related to optimization should be able to work with differentials. They are simpler to apply than (partial) derivatives and strictly more expressive, especially when generalizing to matrix functions. We will motivate them in this post, following the book Matrix Differential Calculus.
For the last five month I have used spaced repetition again more extensively, not only for vocabulary learning, but also in other domains such as math and instrument learning.
This post collects some observations I made, and gives examples how they are making life easier. The cards are generated with ZTL from my set of notes and imported to Anki.
Navigating a set of notes is central for a useful note taking system. I recently designed a custom note picker for ZTL and aplied ideas of modal editing to its function.
In this post, we will generate populations of programs consisting of only eight instructions and optimize their fitness to reproduce a target behaviour (for example reversing a sequence) with genetic programming.
One of the interesting, and hard aspect of calisthenics, is the ability to progress between movements in many different ways. In contrast to classical weight training, the target is not being able to lift a certain amount of weight over a certain amount of repetitions – but being able to move into a position and hold for some time.
Classical axes of movements are divided into pulling vs. pushing and vertically vs. horizontally. For example, handstand is a vertical pushing movement.
I was recently loooking for ways to track exercise progressions long-term. As I found existing applications not customizable enough for my needs, I instead implemented a simple interval timer. What set it aparts from others, is that executions is sourced from TOML files. Especially for intra-exercise progressions, I found a self-modifying pattern useful, where configuration keys can act on themselves.
Peeling oranges in high dimensionality is hard. This post discusses a fundamental phenomenon in asymptotic geometry and explains at which rate you should peel an orange.
I wrote a new iteration of my note system during a week vacation from home. Motivated with two recent observations, that the system I want to built is actually a static note generator, and that Mastodon is a good fit for publishing and reviewing notes, I created a tool called ztl.
A transcription of Belle qui tiens ma vie I created with Musescore for playing on Gambe and singing together.
I recently started with some exercises of the comprehensive convex analysis and monotone operator book by Bauschke and Combettes. It is an excellent source for self-studying and a good fit for a student with EE math background.