x(t) = -u(t-3)+2u​(t+1)-2u(t​-1)+u(t-3)

x(t) = -u(t-3)+2u(t+1)-2u(t-1)+u(t-3)

how to solve it ? help i'm new

Answer 1

[Jonas]

please check your given equation, the last and first term cancel out each other. Nevertheless, i kept both of them in the code below

generate a time vector from -5 to 5 with step 0.1

t=-5:0.1:5;

generate unit step data

x=zeros(size(t));

preFactors=[-1 +2 -2 +1];
timeShifts=[-3 +1 -1 -3];

for termNr=1:numel(preFactors)
    % create current unit impulse
    thisTerm=t>-timeShifts(termNr);
    
    % add up
    x=x+preFactors(termNr)*thisTerm;
end

stem(t,x,'.')