Philippi Lansbergii Triangulorum Geometriae Libri Quatuor

This seminal work on trigonometry and cyclometry by Dutch mathematician Philips van Lansbergen offers a lucid and comprehensive treatment of the principles of geometry and trigonometry, as well as their practical applications in surveying, navigation, and astronomy. The volume features clear diagrams and illustrations, as well as extensive commentary and examples, making it an essential resource for anyone studying or working with mathematical and scientific concepts.
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