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

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發送短信 : Equiangular lines in low dimensional Euclidean spaces