Text this: Optimal arrangement of meta-atoms composing metamaterials

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