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 ______      ___     __   _     _____             
|      \\   / _ \\  | || | ||  |  ___||     ___   
|  --  //  / //\ \\ | '--' ||  | ||__      /   || 
|  --  \\ |  ___  ||| .--. ||  | ||__     | [] || 
|______// |_||  |_|||_|| |_||  |_____||    \__ || 
`------`  `-`   `-` `-`  `-`   `-----`      -|_|| 
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發送短信 : A memory-efficient tables-and-additions method for accurate computation of elementary functions