ILOG OPL Development Studio Language Reference Manual

Constraints on cumul function expressionsThe following constraints can be expressed on a cumul function expression f. Letandand a be an interval variable:♦alwaysIn(f, u, v, h min , h max ) means that the values of function f must remain in the range[h min , h max ] everywhere on the interval [u, v).♦alwaysIn(f, a, h min , h max ) means that if interval a is present, the values of function f mustremain in the range [h min , h max ] between the start and the end of interval variable a.♦f h max means that function f cannot take values greater than h max . It is semanticallyequivalent to .♦f h min means that function f cannot take values lower than h min . It is semantically equivalenttoMore formally:I L O G O P L D E V E L O P M E N T S T U D I O L A N G U A G ER E F E R E N C E M A N U A L163