正切表(弧度)
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tan(-0.97) = tan(-56°34'36") = -1.45920112766635
tan(-0.96) = tan(-56°00'14") = -1.42835749092361
tan(-0.95) = tan(-55°25'51") = -1.3983825892877
tan(-0.94) = tan(-54°51'28") = -1.36923448108756
tan(-0.93) = tan(-54°17'06") = -1.34087382891283
tan(-0.92) = tan(-53°42'43") = -1.31326369932025
tan(-0.91) = tan(-53°08'20") = -1.28636938072081
tan(-0.90) = tan(-52°33'58") = -1.26015821755034
tan(-0.89) = tan(-51°59'35") = -1.234599459049
tan(-0.88) = tan(-51°25'13") = -1.20966412116927
本工具提供正切函数值计算功能，覆盖-90°到90°范围（避开90°奇点），支持角度输入（如45°）或弧度输入（如π/4）。结果保留10位小数，支持批量计算、结果对比及历史记录回溯。包含角度与弧度转换说明，适用于三角函数学习、工程制图、物理实验数据分析等场景。