ILOG OPL Development Studio Language Reference Manual

Piecewise-linear functions.................................................................................................................95Set expressions...............................................................................................................................102Boolean expressions.......................................................................................................................104Constraints.................................................................................................................................................105Introduction.....................................................................................................................................106Using constraints.............................................................................................................................107Constraint labels.............................................................................................................................111Types of constraints........................................................................................................................121Formal parameters.....................................................................................................................................133Basic formal parameters.................................................................................................................134Tuples of parameters.......................................................................................................................137Filtering in tuples of parameters......................................................................................................138Scheduling..................................................................................................................................................141Introduction.....................................................................................................................................143Piecewise linear and stepwise functions.........................................................................................145Interval variables.............................................................................................................................148Unary constraints on interval variables...........................................................................................152Precedence constraints between interval variables........................................................................153Constraints on groups of interval variables.....................................................................................154A logical constraint between interval variables: presenceOf...........................................................155Expressions on interval variables....................................................................................................156Sequencing of interval variables.....................................................................................................158Cumulative functions.......................................................................................................................161State functions................................................................................................................................166Notations.........................................................................................................................................171ILOG Script for OPL................................................................................................................173Language structure....................................................................................................................................175Syntax.............................................................................................................................................177Expressions in ILOG Script.............................................................................................................183Statements......................................................................................................................................197Built-in values and functions.......................................................................................................................205Numbers..........................................................................................................................................207ILOG Script strings..........................................................................................................................221ILOG Script Booleans.....................................................................................................................231ILOG Script arrays..........................................................................................................................237Objects............................................................................................................................................243Dates...............................................................................................................................................251The null value..................................................................................................................................259The undefined value........................................................................................................................260ILOG Script functions......................................................................................................................261Miscellaneous functions..................................................................................................................262Index........................................................................................................................2636I 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 L