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by 29athrowaway
2247 days ago
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Trigonometric functions have existed for a long time. And in the past, more trigonometric functions were used: - versed sine (versin) and versed cosine (vercos) - coversed sine (coversin) and coversed cosine (covercos) - haversed sine (haversin) and haversed cosine (havercos) - hacoversed sine (hacoversin) and hacoversed cosine (hacovercos) - exsecant and excosecant Perhaps I am forgetting some. Many alternative mnemonics exist for these too. This formula was very important: https://en.wikipedia.org/wiki/Haversine_formula |
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