1、In mathematics, an asymptotical function is one that approaches a certain value or curve as the input approaches infinity.
在数学中，无穷渐近函数是指当输入趋近于无穷时，它逐渐接近某个值或曲线。

2、The function f(x) = 1/x is an asymptotical function, as it approaches the x-axis but never touches it.
函数f(x) = 1/x 是一个无穷渐近函数，因为它渐近于x轴但从不触碰它。