accurately calculated present value的用法和样例：
- Zu Chongzhi accurately calculated the value of pi to seven decimal places.
- Sum of annual costs of losses calculated to present values.
- The net present value calculation is based on future cash flows.
- Net Present Value (NPV) - The method used in evaluating investments whereby the net PV of all EVA or cash flow is calculated using a discount rate of the cost of capital.
- Zuchong has accurately calculated the ratio of the circumference to seven points after the radix point.