Section 4: Additional Financial Functions 59File name: hp 12c_user's guide_English_HDPMBF12E44 Page: 59 of 209Printered Date: 2005/7/29 Dimension: 14.8 cm x 21 cmThe amounts of the subsequent cash flows are stored – in the order they occur – inthe remaining storage registers: CF1 thru CF 9 in R 1 thru R 9, and CF 10 thru CF 19 in R .0thru R.9, respectively. If there is a CF20, that amount is stored in the FV register.*Each cash flow (CF1, CF2, etc.) is designated CFj, where j takes on values from 1up to the number of the final cash flow. The amount of a cash flow is entered usingthe K key. Each time gK is pressed, the amount in the display is stored inthe next available storage register, and the number in the n register is increasedby 1. This register therefore counts how many cash flow amounts (in addition tothe initial investment CF0) have been entered.Note: When entering cash flow amounts — including the initial investmentCF0 — remember to observe the cash flow sign convention by pressing Þafter keying in a negative cash flow.In summary, to enter the cash flow amounts:1. Press fCLEARH to clear the financial and storage registers.2. Key in the amount of the initial investment, press Þ if that cash flow isnegative, then press gJ. If there is no initial investment, press 0gJ.3. Key in the amount of the next cash flow, press Þ if the cash flow isnegative, then press gK. If the cash flow amount is zero in the nextperiod, press 0 gK.4. Repeat step 3 for each cash flow until all have been entered.With the amounts of the cash flows stored in the calculator’s registers, you cancalculate NPV as follows:1. Enter the interest rate, using ¼ or C.2. Press fl.The calculated value of NPV appears in the display and also is automaticallystored in the PV register.* If you have stored a program in the calculator, the number of registers available for storingcash flow amounts may be less than 21. (Storage registers are automatically allocated toprogram lines beginning with R.9 and proceeding in reverse order to R7 , as described onpages 93 thru 95.) The maximum number of cash flow amounts (in addition to CF0) that canbe stored is the number that appears at the right of the display when gN is pressed. If themaximum number of cash flow amounts is stored, the final cash flow amount is always storedin the FV register. For example, if N displays P-08 r-20, the last cash flow amount that canbe stored – CF20 – will be stored in FV. Similarly, if N displays P-22 r-18, the last cashflow amount that can be stored – CF18 – will be stored in FV.
