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HP 10bII+ User Manual Page 148

Financial calculator.
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To solve a continuous compounding problem complete these steps:
1.
Compute the annual effective rate using the above equation.
2. Either use this effective rate in your calculations with an annual period (P/YR = 1) or
convert this rate so that it applies to your payment period. In the following example,
P/YR = 12 so you have to calculate a new NOM% using the interest rate conversion
application with P/YR equal to 12.
Example
You currently have 4,572.80 in an account at Dream World Investments that earns 18%
annual interest compounded continuously. At the end of each month, you deposit 250.00 in
the account. What will the balance be after 15 years?
Table 13-6 Calculating the annual nominal rate
Keys
Jg§
\K
AJPJ::4
JG\Í
Set to End Mode. Press
Table 13-7 Calculating the balance amount after 15 years
Keys
JV\Ú
GV:yÌ
YVjG7gy
Ï
É
140
Additional Examples
if BEGIN annunciator is displayed.
297,640.27
Display
Description
0.18
Divides nominal rate by 100.
1.20
Raises e to 0.18 power.
19.72
Calculates annual effective rate.
19.72
Stores effective rate.
12.00
Sets payments per year.
18.14
Calculates the annual nominal
rate for a monthly payment
period.
Display
Description
180.00
Stores number of months.
-250.00
Stores regular payment.
-4,572.80
Stores current balance as a
negative value (like an initial
investment).
Calculates the account balance
after 15 years of payments with
18% interest compounded
continuously.

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