Appendix A: Batteries and Answers to Common QuestionsIV
Q: How can I change the sign of a number in a list of cash flows?
A: You must edit or replace the cash flow entry (Ch. 8 Cash Flow Calculations).
Q: What does PEND in the display mean?
A: An arithmetic operation is pending (in progress).
Q: What does INPUT in the display mean?
A:The Æ key has been pressed (Ch. 2 Getting Started).
Q: Why is IRR/YR larger than I expected?
A: This is IRR per year. To see a periodic IRR, divide IRR/YR by P/YR.
Environmental Limits
To maintain product reliability, you should avoid getting the calculator wet and observe the
following temperature and humidity limits:
• Operating temperature: 0° to 40°C (32° to 104°F).
• Storage temperature: -20° to 65°C (-4° to 149°F).
• Operating and storage humidity: 90% relative humidity at 40°C (104°F) maximum.
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