text: public ValueEval Evaluate(ValueEval[] args, OperationEvaluationContext ec){if (args.Length == 1){return Evaluate(ec.RowIndex, ec.ColumnIndex, args[0]);}if (args.Length == 2){return Evaluate(ec.RowIndex, ec.ColumnIndex, args[0], args[1]);}return ErrorEval.VALUE_INVALID;}