Hello, I would like to submit you a new feature: an expression evaluator (MATH-809, ignore my patch). This interpreter will evaluate an expression (including variable, function) but will don't provide parser (to keep I/O independency).
I think it would be useful to put this functionality into commons-math for some reasons: - Writing a new library only for this function isn't very gainful; - Evaluating an expression is a common math operation; N.B: Implementation will use interpreter, builder and factory design patterns.
