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  ____      / _ \\    / ___//  |  ___|| | \  / || 
 |    \\   / //\ \\   \___ \\  | ||__   |  \/  || 
 | [] ||  |  ___  ||  /    //  | ||__   | .  . || 
 |  __//  |_||  |_|| /____//   |_____|| |_|\/|_|| 
 |_|`-`   `-`   `-` `-----`    `-----`  `-`  `-`  
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發送短信 : An analytic center based column generation algorithm for convex quadratic feasibility problems