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   _____     ___      ____     _    _    __   __  
  / ___//   / _ \\   |  _ \\  | || | ||  \ \\/ // 
  \___ \\  / //\ \\  | |_| || | || | ||   \   //  
  /    // |  ___  || | .  //  | \\_/ ||   / . \\  
 /____//  |_||  |_|| |_|\_\\   \____//   /_//\_\\ 
`-----`   `-`   `-`  `-` --`    `---`    `-`  --`

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Text this: The optimal value bounds of the objective function in the interval linear programming problem