[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Help-glpk] Understanding solution answer: infeas??
From: |
Banik |
Subject: |
[Help-glpk] Understanding solution answer: infeas?? |
Date: |
Mon, 2 Nov 2009 20:11:30 +0300 |
Hi guys, I am new in GLPK use and I would like to ask you about some solution
that I get: Basically I define an LP problem where the variable x10, x11 and
x12 take values bw. 0 and 1 and the sum of x10+x11+x12 = 1, according to
that and for 18 structural variables I get the following answer:
> ./a.out
0: obj = 0.000000000e+00 infeas = 6.000e+00 (0)
* 8: obj = 1.300000000e+03 infeas = 0.000e+00 (0)
* 13: obj = 1.600000000e+03 infeas = 8.171e-16 (0)
OPTIMAL SOLUTION FOUND
z = 1600
x10 = 0; x11 = 0; x12 = 1
x20 = 0; x21 = 0; x22 = 1
x30 = 0; x31 = 0; x32 = 1
x40 = 0; x41 = 0; x42 = 1
x50 = 1; x51 = 0; x52 = -8.17124e-16
x60 = 1; x61 = 0; x62 = 0
The value of z correspond to the right value, but how do I understand the
value of x52??, is it a real "0" value and how is it related to the "infeas
= 8.171e-16" value?, does it mean that my answer is wrong (since I should
have only expect x50 = 1; x51 = 0; x52 = 0)?
On advance thanks for the help you can give me!
--
View this message in context:
http://old.nabble.com/Understanding-solution-answer%3A-infeas---tp26157716p26157716.html
Sent from the Gnu - GLPK - Help mailing list archive at Nabble.com.
- [Help-glpk] Understanding solution answer: infeas??,
Banik <=