clear allclose allclcsyms u(t) r(t) x(t) t0u(t)=piecewise(t<t0, 0, t>=t0, 1);t=0:1/50:10;x1(t)=2*u(t-1)-2*u(t-3);x1=subs(x1,{t0,t},{0,t});plot(t,x1,'r')hold onr(t)=piecewise(t<t0, 0, t>=t0, t-t0);x2=r(t-(11/3))-2*r(t-(13/3));plot(t,x2,'b');
MATLAB: There is error in x1(t)
signalSymbolic Math Toolboxu(t-1)u(t-2)
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