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Text & utilities

本分类下的所有工具与文章，集中在一处。

工具

Greek alphabet explainer
Type Greek and get names plus transliteration; type letter names and get glyphs. The full 24-letter table explains where engineers meet each one, from μ micro to Ω ohms.
Text Diff
Compare two blocks of text and see exactly what changed, line by line, with inline word-level highlighting on edited lines. Optionally ignore whitespace or case. Everything is computed in your browser; your text is never sent anywhere.

文章

The Greek Alphabet: Engineering's Second Alphabet
Why Ω means ohms, μ means micro, and λ runs both wavelengths and serverless functions. The 24 letters, the final-sigma rule, and the transliteration gotchas between modern and classical Greek that quietly rename beta and eta.
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