HP 12c User's Manual
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Brand: HP
Category: Calculator
Type: Operation & user’s manual
Model: HP 12C , HP 12C - 12c Financial Calculator , HP 12C#ABA - 12C Financial Calculator
Pages: 211
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Section 4: Additional Financial Functions 59
File name: hp 12c_user's guide_English_HDPMBF12E44 Page: 59 of 209
Printered Date: 2005/7/29 Dimension: 14.8 cm x 21 cm
The amounts of the subsequent cash flows are stored – in the order they occur – in
the remaining storage registers: CF
1
thru CF
9
in R
1
thru R
9
, and CF
10
thru CF
19
in R
.0
thru R
.9
, respectively. If there is a CF
20
, that amount is stored in the FV register.*
Each cash flow (CF
1
, CF
2
, etc.) is designated CF
j
, where j takes on values from 1
up to the number of the final cash flow. The amount of a cash flow is entered using
the
K
key. Each time
gK
is pressed, the amount in the display is stored in
the next available storage register, and the number in the n register is increased
by 1. This register therefore counts how many cash flow amounts (in addition to
the initial investment CF
0
) have been entered.
Note: When entering cash flow amounts — including the initial investment
CF
0
— remember to observe the cash flow sign convention by pressing Þ
after 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 is
negative, 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 is
negative, then press gK. If the cash flow amount is zero in the next
period, 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 can
calculate 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 automatically
stored in the PV register.
*
If you have stored a program in the calculator, the number of registers available for storing
cash flow amounts may be less than 21. (Storage registers are automatically allocated to
program lines beginning with R
.9
and proceeding in reverse order to R
7
, as described on
pages 93 thru 95.) The maximum number of cash flow amounts (in addition to CF
0
) that can
be stored is the number that appears at the right of the display when gN is pressed. If the
maximum number of cash flow amounts is stored, the final cash flow amount is always stored
in the FV register. For example, if N displays P-08 r-20, the last cash flow amount that can
be stored – CF
20
– will be stored in FV. Similarly, if N displays P-22 r-18, the last cash
flow amount that can be stored – CF
18
– will be stored in FV.