题目:http://acm.hdu.edu.cn/showproblem.php?pid=1333 Smith Numbers Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 1734 Accepted Submissio
请先查看解决问题所需的数据表结构:点击跳转 问题:列出薪资比“SMITH”多的所有员工 答案: 解法一: select * from emp where sal>(select sal from emp where ename='SMITH'); 解法二: select * from emp A where exists(select null from emp B
理解射频中常用的史密斯圆图(Smith Chart) 工程中常用史密斯圆图表示射频器件端口的回波损耗 Γ \Gamma Γ. 回波损耗 回波损耗,又称器件端口的反射系数,反映了器件的端口阻抗 Z_{1L} 与传输线阻抗 Z 0 Z_0 Z0 之间的匹配: Γ = Z 1 L − Z 0 Z 1 L + Z 0 \begin{align} \Gamma = \frac{Z_{1L}-Z
Electronic Circuits with MATLAB, PSpice, and Smith Chart By 作者:Won Y. Yang Jaekwon Kim Kyung W. Park Donghyun Baek Sungjoon Lim Jingon Joung Suhyun Park Han L. Lee Woo June Choi Taeho Im Release Fin