MATLAB: Plotting discrete time signals

heavisideunit step

I'm trying to plot a discrete time signal with a step function from -5 to 5 I am trying to use the heaviside() function but keep getting errors. Can anyone tell me why this is invalid matlab syntax?
n = [-5 -4 -3 -2 -1 0 1 2 3 4 5];
f_one = 2*(0.5)^.n * heaviside(n.+2)

Best Answer

% You have so
n = [-5 -4 -3 -2 -1 0 1 2 3 4 5];
f_one = 2*0.5.^n.* heaviside(n+2)
stem(n,f_one)
% The operator .+ does not exist in Matlab
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