I have a set of variables $x_i$ for which $x_i \ge 0$, and a set of linear equations relating them: $A \mathbf{x} \le \mathbf{b} $. The typical constraints for a linear program. Is there a general way to check if the region of feasible solutions is actually just a single point? Maybe something analogous to the determinant?

  • $\begingroup$ can you provide the actual problem you're referring to? $\endgroup$
    – Set
    Feb 18, 2019 at 4:22
  • $\begingroup$ I edited the post to reflect the desire for a general method $\endgroup$ Feb 18, 2019 at 13:34


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