双曲正割表(弧度)
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sech(2.70) = sech(154°41'54") = 0.133806676793101
sech(2.71) = sech(155°16'17") = 0.132487073725708
sech(2.72) = sech(155°50'40") = 0.131180254333674
sech(2.73) = sech(156°25'02") = 0.129886101562781
sech(2.74) = sech(156°59'25") = 0.12860449922842
sech(2.75) = sech(157°33'48") = 0.127335332015427
sech(2.76) = sech(158°08'10") = 0.126078485477689
sech(2.77) = sech(158°42'33") = 0.124833846037511
sech(2.78) = sech(159°16'56") = 0.123601300984773
sech(2.79) = sech(159°51'18") = 0.122380738475862
支持0°到360°范围内的数值计算，提供最大值标记（0°处为1），可显示双曲正割钟形曲线图。支持导出计算结果为CSV格式。