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Hi! The original equation involves an arctan term, which makes it transcendental and tricky to solve explicitly for c as a function of h. The approximation given: h = 2c + (sin(c + E) - sin E) is indeed a simplification that likely comes from expanding the arctan term to first order in a small param...
- par rubsantler
- 02 Juin 2025, 05:29
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- Forum: ⚜ Salon Mathématique
- Sujet: Parallaxe d'un cadran solaire à miroirs
- Réponses: 3
- Vues: 849