發送短信 : Symmetric and antisymmetric tight wavelet frames

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