tran or Matlab syntax where a ( 1 : 5 ) represents a vector (
      1, 2, 3, 4, 5 ). The convention on model input is that such
      vectors are defined by first reading a line with the number of
      elements in the vector. Then the vector itself is read in.
      However, in reading the vector one can optionally provide just the
      first and last elements followed by a '/'. Thus, after specifying
      5 elements, the vector (1:5) can be read is as '1 5 /'<br>
    </p>
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