COIN-OR::LEMON - Graph Library

Opened 17 years ago

Last modified 17 years ago

#92 closed defect

Invalid constraints in LP — at Initial Version

Reported by: Balazs Dezso Owned by: Alpar Juttner
Priority: minor Milestone: LEMON 1.1 release
Component: core Version: svn trunk
Keywords: Cc:
Revision id:

Description

The following type of constraints are valid in the Lp system:
LpExpr?(e) >= double(l) <= double(u),
and the meaning of it is
double(l) <= LpExpr?(e) <= double(u).
The solution is easy, if an expr is on the left side of comparison, then the other bound must be also set to +/- Inf, it must not let NaN.

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