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

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發送短信 : Generalized reaction-diffusion equations