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by bobbybabylon 2025 days ago
Funnily enough, haversines and the lot can be found in Dover's Trigonometry Refresher. Had.to do some revision myself for back-to-school.

O.G. Artillery measurement and spherical navigation can be revised in that book, while spherical trig. can be practiced in the 1954 edition Schaum's Plane and Spherical Trigonometry. Good stuff.