Evaluating a single formula

An equation may be evaluated by using the procedure
Evaluate_Interval_With_Parser with the following syntax:

 
int Evaluate_Interval_With_Parser(
        char *texte,INTERVAL_VECTOR &P,int Unknowns,INTERVAL &Value)

The parameters are:

• texte: the name of the file describing the analytical form of the equation
• P: the ranges for the unknowns
• Unknowns: the number of unknowns
• Value: the interval evaluation of the equation

This procedure returns 1 if the equation has been successfully evaluated, 0 otherwise.