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HP -22S Owner's Manual Page 137

Scientific calculator.
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Keys:
.1
OISP
I
{FX} 2
Display:
Description:
Sets display to two
decimal places.
Step 1:
Calculate the payment for the mortgage.
.1
SOLVE
I
{P}
1 ?value
Selects P, prompts for
I.
13.8
[±]
12 I INPUT
I
F?value
Stores I, prompts for F.
o
I INPUT
I
N?value
Stores F, prompts for
N.
25
0
12 II NPUT
I
B?value
Stores N, prompts for
B.
75250 I INPUT
I
P=-894.33
Stores
B,
calculates
monthly payment.
Step 2.
Calculate the balloon payment after 4 years:
.1
SOLVE
I
{F}
1
PARTS
I
{RN}
I INPUT
I
I INPUT
I
40
12 I INPUT
I
P?-894.33
1?1.15
N?300.00
B175,250.00
F=-73,408.81
Selects F, prompts for
P .
Stores rounded value
of P, prompts for I.
Retains previous I,
prompts for N
Stores N for 4 years,
prompts for
B.
Retains previous
B,
calculates balloon
payment. This amount
plus the last monthly
payment repays the
loan.
8: Additional Examples
137

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