ShiningM

Xpress-MP에서 제약식을 정의하고 목적함수에 대한 최적화 알고리즘을 수행한 뒤, 상수항 값을 변경하고 다시 최적화 알고리즘 실행 시 제약식을 재정의 해야 모델이 수정되어 로딩 된다.예)declarations! dataDEMAND : array(1..5) of realCAPA : array(1..5) of real ! decision variablesmake : array(1..5) of mpvar ! constraintsDemand : array(1..5) of linctrCapacity : array(1..5) of linctr ! objective functionObjective : linctrend-declarations forall(i in 1..10) doDEMAND(i) := 5CAPA(..

Network Basic DefinitionsA graph, or network, is defined by two sets of symbols: nodes and arcs. First, we define a set (call it V) of points, or vertices. The vertices of a graph or network are also called nodes. Definition) An arc consists of an ordered pair of vertices and represents a possible direction of motion that may occur between vertices. Definition) A sequence of arcs such that every..

Mosel에서 linear expression을 다루는 방식에 대한 설명이다. Internally all linear constraints are stored in the same form: a linear expression (including a constant term) and a constraint type (the right hand side is always 0). This means, the constraint expression 3*x>=5*y-10 is internally represented by: 3*x-5*y+10 and the type `greater than or equal to'. When a reference to a linear constraint appears in an ..