考虑以下假设的MATLAB代码，其中我们取a的平方根

数字x迭代N次，然后将结果N次迭代计算[1]。 与

参考注释4和5，解释结果。 使用命令whos检查精度。-Consider the following hypothetical MATLAB code, in which we take the square root of a

number x for N times iteratively and then square the result N times iteratively [1]. With

reference to Notes 4 and 5, explain the result. Use the command whos to check for precision