feat: various

matoous · Dec 10, 2024 · c35fc51 · c35fc51
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diff --git a/computer_science/data_structures.md b/computer_science/data_structures.md
@@ -14,6 +14,10 @@
 
 - [how the append-only btree works](https://www.bzero.se/ldapd/btree.html)
 
+## [**k-d tree**](https://en.wikipedia.org/wiki/K-d_tree)
+
+> k-dimensional tree (k-d tree) is a space-partitioning data structure for organizing points in a k-dimensional space. K-dimensional is that which concerns exactly `k` orthogonal axes or a space of any number of dimensions. k-d trees are a useful data structure for several applications, such as searches involving a multidimensional search key (e.g. range searches and nearest neighbor searches) or creating point clouds. k-d trees are a special case of [binary space partitioning](https://en.wikipedia.org/wiki/Binary_space_partitioning) trees. 
+
 ## Ropes
 
 - [Rope science](https://xi-editor.io/docs/rope_science_00.html)

diff --git a/computer_science/graphics/shaders.md b/computer_science/graphics/shaders.md
@@ -8,3 +8,4 @@
 - [On Crafting Painterly Shaders](https://blog.maximeheckel.com/posts/on-crafting-painterly-shaders/) - shader that looks like paintings #shaders
 - [glslViewer](https://github.com/patriciogonzalezvivo/glslViewer) - Console-based GLSL Sandbox for 2D/3D shaders
 - [shadertoy](https://www.shadertoy.com/) - Build and Share your best shaders with the world and get Inspired
+- [Shadplay](https://github.com/alphastrata/shadplay) - exploring shader in bevy
diff --git a/computer_science/observability.md b/computer_science/observability.md
@@ -7,6 +7,7 @@
 - [Monitoring is a Pain](https://matduggan.com/were-all-doing-metrics-wrong/)
 - [Canonical Log Lines](https://stripe.com/blog/canonical-log-lines)
 - [What Does a Good Trace Look Like?](https://www.honeycomb.io/getting-started/what-does-a-good-trace-look-like)
+- [All you need is Wide Events, not "Metrics, Logs and Traces"](https://isburmistrov.substack.com/p/all-you-need-is-wide-events-not-metrics)
 
 ## Tools
 

diff --git a/computer_science/operating_systems/index.md b/computer_science/operating_systems/index.md
@@ -13,3 +13,4 @@
 - [Operating Systems: From 0 to 1](https://tuhdo.github.io/os01/)
 - [MyViewOfLinuxSystems](https://github.com/lsc4719/MyViewOfLinuxSystems)
   ![Linux process view](/static/linux-process-view.png)
+- [Hermit OS](https://github.com/hermit-os/kernel) - A Rust-based, lightweight unikernel. #rust #os #kernel
diff --git a/math/index.md b/math/index.md
@@ -3,6 +3,9 @@
 ## Resources
 
 - [**Interactive Linear Algebra**](https://textbooks.math.gatech.edu/ila/index.html)
+- [**Quaternions**](https://eater.net/quaternions) 
+  - [Quaternion (Wiki)](https://en.wikipedia.org/wiki/Quaternion)
+  - [Quaternions and 3d rotation, explained interactively (video)](https://youtu.be/zjMuIxRvygQ?si=4LvYANrmsuy5lwIt)
 - [Mathematics Cheat Sheet](https://ourway.keybase.pub/mathematics_cheat_sheet.pdf)
 - [A Programmer’s Introduction to Mathematics](https://www.bit-101.com/blog/2021/08/a-programmers-introduction-to-mathematics/)
 - [Math Foundations from Scratch](https://learnaifromscratch.github.io/math.html)

diff --git a/work/index.md b/work/index.md
@@ -145,5 +145,6 @@ The [CAP theorem](https://en.wikipedia.org/wiki/CAP_theorem), states that any di
 - **Availability** - Every request receives a (non-error) response, without the guarantee that it contains the most recent write.
 - **Partition tolerance** - The system continues to operate despite an arbitrary number of messages being dropped (or delayed) by the network between nodes.
 
+- [A Critique of the CAP Theorem](https://arxiv.org/abs/1509.05393)
 
 [^get_it_done]: [Get It Done](https://boz.com/articles/get-it-done) by [Andrew Bosworth](https://boz.com)