發送短信 : Linear independence of pseudo-splines

            _____     ______    _____             
  ____     |  ___||  /_   _//  |  ___||     ___   
 |    \\   | ||__      | ||    | ||__      /   || 
 | [] ||   | ||__     _| ||    | ||__     | [] || 
 |  __//   |_____||  /__//     |_____||    \__ || 
 |_|`-`    `-----`   `--`      `-----`      -|_|| 
 `-`                                         `-`