两道极限题的引申

A further extension of two limit exercises

讨论了一串构造极其简单的数列 ,它较快地、精确地逼近一个任意数的立方根 ;并用非常简单的

We discussed a series of sequences with simplest construction. The sequences can approach the cube root of any number quickly and accurately,and tested and verified with very simple BASIC programmes.