Ray TAN

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Latest activity by Ray TAN
  • Ray TAN created a post,

    write the relation between two deision variables

    Ongoing

    I would like to write the constraints between two continuous decision variable x(m) and y(n) x(m) is equal to the value of column in y(i,j) which is nonzero i.e.   y=[1,1,0,0,1] and x could be one ...

  • Ray TAN created a post,

    Modeling if constraints with interger variable

    Answered

    I wanna write the constraint like if x=K  (K is a constant ) then y=z x,y,z are integer variables.   I scan the other related posts using big M method and I find it is unsuitable for my problem sin...