Please note that your calculators sign convention requires that one of the TVM inputs PV FV or PMT be a negative number. If you accidentally did that or if one of the proctors did that to your calculator before the exams it happens. Table 1-2 Clearing functions.
Basically it shows how many different possible subsets can be made from the larger set.
Please note that your calculators sign convention requires that one of the TVM inputs PV FV or PMT be a negative number. X numbers number of items. This tutorial also shows how to calculate net present value NPV internal rate of return IRR and modified IRR MIRR. Clears cash flow memory.