Python solve Examples

Example #1

File: MIP9.py Project: tkralphs/CuPPy

numVars = 2
numCons = 4
#points = [[0, 0], [3, 4], [8, 6], [6, 1]]
A = [[-4, 3],
     [1, -6],
     [5, -2],
     [-2, 5]]
b = [0, 0, 28, 14]
sense = ('Max', '<=')
integerIndices = [0, 1]
c = [1, 1]

if __name__ == '__main__':

    try:
        from coinor.cuppy.cuttingPlanes import solve, gomoryCut
        from coinor.cuppy.milpInstance import MILPInstance
    except ImportError:
        from src.cuppy.cuttingPlanes import solve, gomoryCut
        from src.cuppy.milpInstance import MILPInstance

    m = MILPInstance(A = A, b = b, c = c,
                     sense = sense, integerIndices = integerIndices,
                     numVars = numVars)
    
    solve(m, whichCuts = [(gomoryCut, {})], display = True, debug_print = True)

Example #2

File: MIP5.py Project: waldstein1983/CuPPy

numVars = 2
points = [[2.5, 4.5], [6.5, 0.5], [0.5, 1], [7, 5.7], [7.7, 5], [2, 0.25]]
#points = [[0, 0], [2.5, 4.5], [7.75, 5.75], [6.5, 0.5]]
#points = [[0, 0], [2.5, 4.5], [7.5, 5.5], [6.5, 0.5]]
rays = []
c = [0, 1]
sense = ('Max', '<=')
integerIndices = [0, 1]

if __name__ == '__main__':

    try:
        from coinor.cuppy.cuttingPlanes import solve, gomoryCut
        from coinor.cuppy.milpInstance import MILPInstance
    except ImportError:
        from src.cuppy.cuttingPlanes import solve, gomoryCut
        from src.cuppy.milpInstance import MILPInstance

    m = MILPInstance(c=c,
                     points=points,
                     rays=rays,
                     sense=sense,
                     integerIndices=integerIndices,
                     numVars=numVars)

    solve(m, whichCuts=[(gomoryCut, {})], display=True, debug_print=True)