MATLAB: Help finding the min and max of a matrix without using min/max commands

matricesmatrixmaxmin

I'm having trouble trying to find the min and max of this matrix. So far I can only get it to display the min which is -12, but it doesn't display the max at all, it just shows the entire matrix when I try to display the max. Any help is appreciated, thank you.
 mat2=[-1 0 2;7 -4 12;4 8.2 11;-11 0 -12];
n=size(mat2);
max=mat2;
min=mat2;
for i=1:1:n(1);
    for j=1:1:n(2);
        if(mat2(i,j)>max);
            max=mat2(i,j);
        else(mat2(i,j)<min);
            min=mat2(i,j);
        end
    end
end
max 
min

Best Answer

Change the two lines
   max=mat2;
   min=mat2;
to
   max = -inf;
   min = inf;
Note: It is a poor practice to use the terms 'max' and 'min' for variable names, since those are the names for matlab functions.
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