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On 03/17/2014 07:57 AM, Barbara Rogo wrote:> I have this problem with this form: > > min (A*X) under some constraints. > > the unknown is X that is a Matrix. I can't use the function "linp" because > in it X is a vector.. > > How can I do??? Can you help me????If X is a matrix, then A*X could be a matrix or a vector but not a scalar. You will probably need to specify what scalar function of A*X is to be minimized. -- John P. Burkett