real plot (v(t)=1-t,v1(t)=1-1.5 t +1.5 t^2 +(-2+2 t) Theta(-1+t)+(1.5-1.5 t^2) Theta(-1+t)+(0.66-t) Theta(-0.66+t)+(0.33-t) Theta(-0.33+t)), t=0...1

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