clc
clear;
y=[];
g=9.8;
A=0.0081*g^2;

U1=15;
x?=?0.1:0.01:2;
j=length（x）;
B1=0.74*（（g/U1）^4）;
U2=12;
B2=0.74*（（g/U2）^4）;
U3=10;
B3=0.74*（（g/U3）^4）;
for?i=1:j
y1（i）=（A/x（:i）^5）*exp（-B1/x（:i）^4）;
y2（i）=（A/x（:i）^5）*exp（-B2/x（:i）^4）;
y3（i）=（A/x（:i）^5）*exp（-B3/x（:i）^4）;
end

plot（xy1xy2xy3）;

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件?????????321??2013-12-30?10:42??PM?spectrum.m
?????文件????????8418??2013-12-30?10:44??untitled.fig