www.gusucode.com > matlab通信工程仿真源码(张德丰等编著)程序书籍 > matlab_code/matlab通信工程仿真源码(张德丰等编著)/第6章/li6_1.m
tic s=0; for i=1:100000 s=s+(1/2^i+1/3^i); end s tic i=1:100000; s=sum(1./2.^i+1./3.^i) toc