414. After issue joined, the court, if it is of opinion that the ends of justice will be better attained, may, even of its own motion:(1) order that any fact relating to the case be investigated, verified and determined by an expert whom it designates;
(2) refer to an accountant or practitioner the establishing or auditing of accounts or figures in any matter where accounts have to be rendered or settled and which require calculations to be made, or involve a partition of property.