Talk:Hallade method

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Civil engineering Mid‑importance

	Engineering portal This article is within the scope of WikiProject Civil engineering, a collaborative effort to improve the coverage of Civil engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Civil engineeringWikipedia:WikiProject Civil engineeringTemplate:WikiProject Civil engineeringCivil engineering
Mid	This article has been rated as Mid-importance on the project's importance scale.

Engineering Mid‑importance

	Engineering portal This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering
Mid	This article has been rated as Mid-importance on the project's importance scale.

This article seems to imply Hallade originated the idea of measuring the versine/sagitta of a circular arc

Latest comment: 2 years ago1 comment1 person in discussion

But that idea is much older, and was common practice for railroad (etc.) surveying in the USA starting at latest in the 1850s. I'm not sure about the UK.

Can someone figure out precisely what Hallade's specific contributions were, and make this article more precise, so that we're not implying that older ideas originated with Hallade? –jacobolus (t) 19:27, 14 April 2024 (UTC)Reply

This page was redesigned at the edge.

This article seems to imply Hallade originated the idea of measuring the versine/sagitta of a circular arc