clc     
for n=1:30000;
    t(n)=n/1000000;
    if t(n)<1.5/1000;
        y(n)=0;
    elseif  t(n)<15/1000;
  y(n)=3.16*sin((120*pi*t(n))-(39/180)*pi)+1.69*exp(-342*t(n))-0.707*exp(-58.5*t(n));
    else
 
  y(n)=4.27*sin((120*pi*(t(n)-0.015))-(94.3/180)*pi)+exp(-100*(t(n)-0.015))*0.918*cos(100*(t(n)-0.015))-1.37*sin(100*(t(n)-0.015));
  %y(n)=4.27*sin((120*pi*t(n))-(58.3/180)*pi)+1.92*exp(-100*(t(n)))*cos(100*(t(n)+(47.6/180)*pi));  
    end
end
plot(t,y)