發送短信 : Fourth-order conservative algorithm for nonlinear wave propagation: The rosenau-KdV equation

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