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    %% Plot Piecewise Expression
% Plot the following piecewise expression by using |fplot|.
% 
% $$ y = \Bigg\{ \matrix{-2 & x<-2 \cr x & -2<x<2 \cr 2 & x>2}.$$

syms x
y = piecewise(x<-2, -2, -2<x<2, x, x>2, 2);
fplot(y)