linear-programming

问题 I am still very new to Python, after years and years of Matlab. I am trying to use Pulp to set up an integer linear program. Given an array of numbers: {P[i]:i=1...N} I want to maximize: sum( x_i P_i ) subject to the constraints A x <= b A_eq x = b_eq and with bounds (vector based bounds) LB <= x <= UB In pulp however, I don't see how to do vector declarations properly. I was using: RANGE = range(numpy.size(P)) x = pulp.LpVariable.dicts("x", LB_ind, UB_ind, "Integer") where I can only enter

问题 I am still very new to Python, after years and years of Matlab. I am trying to use Pulp to set up an integer linear program. Given an array of numbers: {P[i]:i=1...N} I want to maximize: sum( x_i P_i ) subject to the constraints A x <= b A_eq x = b_eq and with bounds (vector based bounds) LB <= x <= UB In pulp however, I don't see how to do vector declarations properly. I was using: RANGE = range(numpy.size(P)) x = pulp.LpVariable.dicts("x", LB_ind, UB_ind, "Integer") where I can only enter

来源： https://stackoverflow.com/questions/59233699/mathematical-operation-of-abs-in-objective-function-of-pulp

来源： https://stackoverflow.com/questions/59233699/mathematical-operation-of-abs-in-objective-function-of-pulp

来源： https://stackoverflow.com/questions/59233699/mathematical-operation-of-abs-in-objective-function-of-pulp

来源： https://stackoverflow.com/questions/64542594/how-could-constraints-be-dynamically-constructed-in-gekko

来源： https://stackoverflow.com/questions/63931583/find-next-number-for-sets-in-opl

来源： https://stackoverflow.com/questions/62140335/multiplication-of-two-variables-for-linear-problems-in-glpk-gusek

问题 I have a similar to this task but with some differencies in bold. That is: I have a set of J jobs that need to be completed. Jobs are organized into set of directed graphs. Each job can have one or more preceding(parent) jobs that have to be completed before it starts All jobs take different times to complete, but the time is known I have a set of R human resources. Important!!! Each resource has a schedule when this resource is available Some jobs can be preempted once started. E.g. if a

问题 I have a similar to this task but with some differencies in bold. That is: I have a set of J jobs that need to be completed. Jobs are organized into set of directed graphs. Each job can have one or more preceding(parent) jobs that have to be completed before it starts All jobs take different times to complete, but the time is known I have a set of R human resources. Important!!! Each resource has a schedule when this resource is available Some jobs can be preempted once started. E.g. if a