双曲余切表(弧度)
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coth(0.30) = coth(17°11'19") = 3.43273843032174
coth(0.31) = coth(17°45'42") = 3.32848376413561
coth(0.32) = coth(18°20'04") = 3.2309455183814
coth(0.33) = coth(18°54'27") = 3.13951262370948
coth(0.34) = coth(19°28'50") = 3.05364588778455
coth(0.35) = coth(20°03'12") = 2.97286772726893
coth(0.36) = coth(20°37'35") = 2.89675361114499
coth(0.37) = coth(21°11'57") = 2.82492489160984
coth(0.38) = coth(21°46'20") = 2.75704276693672
coth(0.39) = coth(22°20'43") = 2.69280317312962
支持0.1°到360°范围内的数值计算，提供渐近线标记（0°处无定义），可显示双曲余切曲线图。支持导出计算结果为CSV格式。