双曲正割表(弧度)
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sech(0.80) = sech(45°50'11") = 0.74769991823742
sech(0.81) = sech(46°24'34") = 0.742730694278665
sech(0.82) = sech(46°58'57") = 0.737753796388325
sech(0.83) = sech(47°33'19") = 0.732770363145891
sech(0.84) = sech(48°07'42") = 0.727781512656408
sech(0.85) = sech(48°42'05") = 0.722788342369211
sech(0.86) = sech(49°16'27") = 0.717791928921555
sech(0.87) = sech(49°50'50") = 0.712793328006461
sech(0.88) = sech(50°25'13") = 0.707793574264071
sech(0.89) = sech(50°59'35") = 0.702793681195762
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。