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Plotting Matrix Inequalities

Plotting Matrix Inequalities

Plotting Matrix Inequalities

(OP)
HI,

I was wondering if there is any way to plot matrix inequalities such as xA+yB >= 0 where x and y are scalars and A and B are matrices and >= 0 denotes semidefiniteness.  

Also, more generally, is there a way to plot polynomial inequalities such as ax + bx^2 + c +... >= 0?  

Thanks in advance.  

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