[Help-glpk] two question about LP with GLPK

[皮纳德]

Hi, Andrew and other guys,

 

I have 2 questions about LP with glpk.

1) How to deal with problems with constraint boundary disturbance quickly. For example, originally I have L_i<x_i<U_i (i=1,...n), when I get the answer of x, how can I get another answer with glpk quickly to L_i-e<x_i<U_i+e,where e is a number(such as 0.2 or 0.5)?

 

2) If x_i can only be some real number defined in a known table which satisfy L_i<x_i<U_i. For example 1<x_1<2 and x_1 can only possibly be a number in the table of {1.1,1.13,1.5,1.77,1.93}.The table has no special structure other than ascending sorted. How can I deal with such problems in glpk?

 

Thanks.

George

 

 

 

	 女 友 9 9 元 b u y 的 新 款 O N L Y  
	
	  秋 冬 女 人 精 品 女 装 全 场 火 热 促 销 2 9 元 - 1 9 9 元 , 抢 呀 ( 图 )