發送短信 : The minimal disturbance invariant set: Outer approximations via its partial sums

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