[sage-support] Adding constraints to MixedIntegerLinearProgram

2013-03-25 Thread tvn
I am trying to play around with MixedIntegerLinearProgram but now sure how to add constraints properly to it. My input is a list of relations , e.g. csts = [l <= 15, u >= 10, l <= u] and I want to add these to the solver. All the examples I've seen requires constructing these constraints

[sage-support] relations involving infinity

2013-03-25 Thread tvn
In my project I often have inequalities x <= c , x+y <= c, x -y <= c and to make things uniform, I move all the consts to the lhs, e.g. x <= c becomes x - c <= 0 . However this becomes problem when c is Infinity because Sage automatically converts x - oo <= 0 to -Infinity <= 0 and removes al

[sage-support] Routh–Hurwitz stability

2013-03-25 Thread Dan Aldrich
I'm looking for a library to do Routh–Hurwitz stability calculations. Are there any libraries in Sage that do this? Couldn't find them in scipy/numpy etc. Thanks, -d -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this g