t=0:0.2:2*pi;

plot（tcos（t）‘r-‘）;

hold?on;

alpha=0:0.2:2*pi;

plot（alpha2*exp（-0.5*alpha.^2）‘b:‘）;

xlabel（‘x‘）;

ylabel（‘y‘）;

title（‘cosine?wave?and?2e^{-0.5\alpha^2}?wave?from?zero?to?2\pi‘）;

text（2cos（2）‘y=cos（t）‘）;

text（12*exp（-0.5）‘y=2e^{-0.5\alpha^2}‘）;

legend（‘cos（t）‘‘{\it2e}^{-0.5\alpha^2}‘）;

box?on

grid?on

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件??????282652??2020-01-10?14:07??MATLAB大作業(yè)\Matlab大作業(yè).docx
?????文件?????????359??2018-01-03?21:47??MATLAB大作業(yè)\part1.m
?????文件?????????447??2018-01-03?22:27??MATLAB大作業(yè)\part2.m
?????文件?????????373??2018-01-02?23:40??MATLAB大作業(yè)\part3.m
?????目錄???????????0??2020-01-10?14:07??MATLAB大作業(yè)\