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Sep 11, 2026A nearest-neighbour matcher turned a timing lag into a fake direction bug
TL;DR — If your comparison against golden data matches each expected event to the nearest computed...
Sep 11, 202610 min read0 reactions0 comments
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Sep 18, 2026Tides of Annihilation Gamescom 2026 预告解读
Tides of Annihilation Gamescom 2026 预告解读 关于tides of annihilation的完整指南：Tides of...
Sep 18, 20261 min read0 reactions0 comments
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Aug 31, 2026A current station's coordinate is a label, not the hydraulic control
TL;DR — A published tide or current station coordinate is an identifier for the place, not a...
Aug 31, 202612 min read0 reactions0 comments
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Aug 25, 2026A tidal gate with no current station: deriving slack from a tide port
TL;DR — Some tidal gates have no current station at all: the published knowledge is "slack is the...
Aug 25, 202611 min read0 reactions0 comments
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Aug 11, 2026Porting a tide engine to Swift with the original as the test oracle
TL;DR — Porting numeric code by hand and eyeballing the output is how you ship plausible-looking...
Aug 11, 20269 min read0 reactions0 comments
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Aug 15, 2026How I proved a from-scratch harmonic tide engine is accurate
You wrote a tide engine. It computes a number: 1.42 m at 3:10 PM. How do you know that number is...
Aug 15, 20268 min read0 reactions0 comments
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Aug 13, 2026Tide predictions read higher than the tables? Suspect the datum
TL;DR — If a harmonic tide prediction disagrees with the official tide tables by a constant offset...
Aug 13, 20267 min read0 reactions0 comments
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Jul 31, 2026Offline tidal currents from harmonic constituents — and when not to trust them
TL;DR — signalk-currents v0.7.0 keeps publishing tidal-current predictions when the boat loses...
Jul 31, 202610 min read0 reactions0 comments
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Jul 21, 2026Two tidal libraries disagreed: diff their internals, not their outputs
Two tide libraries gave different answers and bisecting by ablation found nothing, because the...
Jul 21, 202611 min read0 reactions1 comments