正切对数表(角度)
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log(tan(4.1°)) = -1.14459660321597
log(tan(4.2°)) = -1.13409447846941
log(tan(4.3°)) = -1.12383773360096
log(tan(4.4°)) = -1.11381504406705
log(tan(4.5°)) = -1.10401584888013
log(tan(4.6°)) = -1.09443028346809
log(tan(4.7°)) = -1.08504911975475
log(tan(4.8°)) = -1.07586371254926
log(tan(4.9°)) = -1.06686595146349
log(tan(5.0°)) = -1.05804821768738
特别标注45°附近的对数特性，提供角度互补关系速查（如log(tanθ)与log(tan(90°-θ))的关系），支持导出航海专用对数表格式。