Notebook · 15 items
Octonote examples
Sunil TiwariPublished Oct 12, 2026 · updated Oct 12
Project · note + canvasHow a URL shortener works2 min read · Oct 13
Project · note + canvasDijkstra's shortest path, visually2 min read · Oct 13- Self-attention lets every token in a sequence look at every other token and decide how much each one matters for its own new representation. It is the core of every Transformer. · Queries, keys and values · Each token e…Project · note + canvasSelf-attention in one page2 min read · Oct 12
- You type kubectl apply -f deployment.yaml and, seconds later, pods are running. In between, six components cooperate without ever calling each other directly. They all just watch the API server. · The manifest · Step by…Project · note + canvasWhat happens when you run kubectl apply2 min read · Oct 12
- Gradient descent is how almost every model learns. You stand somewhere on a loss surface and repeatedly take a step downhill. The canvas sketches the loop; the note derives the rule. · The setup · We have parameters $\t…Project · note + canvasGradient descent, from intuition to update rule2 min read · Oct 12
- Inline math and code mixed into plain text — e.g. a hash map lookup is $O(1)$ on average and you call it with map.get(key). · Arrays and lists · Index access a[i]: $O(1)$ · Search unsorted: $O(n)$ · search sorted (binar…NoteBig-O for everyday data structures1 min read · Oct 12
- A full system-design note: requirements, algorithm comparison, the maths of the token bucket, two diagrams, production code and a launch checklist. · Requirements · Limit each API key to 100 requests per minute, across…NoteDesigning a distributed rate limiter3 min read · Oct 12
- Diagram-as-code next to real commands: the Mermaid block renders the branch history, the code blocks are copy-pasteable. · The shape of history · Daily loop · Keep the branch fresh · Rules that keep main green · Branche…NoteA Git branching workflow that scales1 min read · Oct 12
- A medical test is 99% accurate. You test positive. What's the chance you actually have the disease? Most people say 99%. The real answer is usually far lower. · The theorem · $$ · P(D \mid +) = \frac{P(+ \mid D)\, P(D)}…NoteBayes' theorem and the 99%-accurate test1 min read · Oct 12
- A one-screen cheat sheet. Just headings, lists and a checklist — the simplest kind of note. · TCP · Connection-oriented: three-way handshake before any data. · Reliable: retransmits lost packets, delivers in order. · Fl…NoteTCP vs UDP — cheat sheet1 min read · Oct 12
CanvasE-commerce microservices architectureOct 13
CanvasMy weekly content pipelineOct 13
CanvasMind map: learning system designOct 13
CanvasThe OSI model, layer by layerOct 13
CanvasCI/CD pipeline with a safe rolloutOct 13
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