發送短信

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 __   __     ___     _    _      ___              
 \ \\/ //   / _ \\  | |  | ||   / _ \\    ____    
  \   //   | / \ || | |/\| ||  / //\ \\  |    \\  
  / . \\   | \_/ || |  /\  || |  ___  || | [] ||  
 /_//\_\\   \___//  |_// \_|| |_||  |_|| |  __//  
 `-`  --`   `---`   `-`   `-` `-`   `-`  |_|`-`   
                                         `-`

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發送短信 : Cumulative sum control chart for monitoring process variance