最近项目需求,需要把python中的算法移植到java上,其中有一部分需要用到复数的运算和傅立叶变换算法,废话不多说 如下: package qrs; /** * 复数的运算 * */ public class Complex { private final double re; // the real part private final double im; // the imaginary part // create a new object with the given real an…
Hawking became world-famous in ________. A. his thirties in the 1970's B. the thirties in his 1970 C. his 30s in 1970's D. the thirties during the 1970 题目解析 考查数词表示时间的用法.此句意思是:二十世纪七十年代,也就是霍金三十多岁时他出名了.“在哪个世纪哪个年代”用in+the+年份s或年份's来表示,年份后加s或's,表示“十年时间…
