378190
[Translation: ]
[Commentary:
The text referred to here is Johan Philip Triangulorum geometriae libri quatuor (1591). Lansberg's rules for spherical triangles are in Book 4, pages 167–207. ]
Anapherosis trianguli obliquanguli
[Translation: Anapherosis for oblique-angled triangles, from ]
[Translation: Anapherosis for oblique-angled triangles, from ]
[Translation: ]
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