function x=NoLoop(a,t);
%NoLoop.m--A double loop with both loops implemented with *
%

n=length(a);
N=2*n-2;
p=length(t);dt=t(2)-t(1);
x=zeros(p,1);
f=2*pi/(N*dt);
k=[0:n-1];
x=f*t*k*a;