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Highlights from
INTSOLVER: An interval based solver for Global Optimization

from INTSOLVER: An interval based solver for Global Optimization by Tiago Montanher
Interval based functions to solve small global optimization problems with guaranteed bounds.

sibrown(type)
function inidata = sibrown(type)
% Brown Almost linear problem initial data. 
% Set type equal 0 to get double initial data.
% Set type equal 1 to get interval initial data.

  if type == 0
   inidata = zeros(1,5);
  end
  
  if type == 1
   inidata = ones(1,5) * infsup(-2,2);
  end
end

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