net.sourceforge.combean.mathprog.grooml
Class GSumExpression

An expression which is given by - a set of index names (i.e. names of variables in the environment) with sets of values - an inner expression When the expression is evaluated, one term for each possible setting of the indices is generated.

GSumExpression

public GSumExpression(Object bindDef, GExpression expr)

Constructor

params:

idxMap maps index names (of type String) to sets

params:

expr the inner expression of the sum

evaluate

public Iterator evaluate(Object env)