正割函数的倒数，称为余割函数。The value of the complement of the secant is called the cosecant.二元函数的列表法是不方便的, 然而是可能的.A tabulation of a function of two variables is cumbersome, but possible.母函数是研究用递推关系来确定的函数的最理想工具.Generating functions a...

“函数的”的英语可以翻译为：functionally ...