正切对数表(角度)
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log(tan(5.1°)) = -1.0494033450448
log(tan(5.2°)) = -1.04092458483115
log(tan(5.3°)) = -1.03260557400041
log(tan(5.4°)) = -1.0244403063259
log(tan(5.5°)) = -1.01642310620728
log(tan(5.6°)) = -1.00854860483774
log(tan(5.7°)) = -1.00081171848057
log(tan(5.8°)) = -0.993207628635067
log(tan(5.9°)) = -0.985731763897909
log(tan(6.0°)) = -0.978379783348989
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。