clear all;
close all;
t=-8:0.01:8;
A=1;
s=zeros(length(t),1)';
%s=fsigma(t-1)-fsigma(t-3)+(-t+4).*(fsigma(t-3)-fsigma(t-4));
s=signal_t(-2*t+4);

s2=signal_t(t);
plot(t,s,t,s2)
grid on
