HP -15C Advanced Functions Handbook page 37

Section 1: Using | SOLVE | Effectively 35
Keystrokes Display
5.751 ENTER] 12 [Tire] 0.48
155 [CHS] [ci
-155.00
259.74
Enters i = 5.75/12.
Enters PV = -155 (money
paid out).
Calculates FV.
If you desire a sum of $275, what would be the required interest
rate?
Keystrokes
275 [E]
[B]|R/S|
120
Display
275.00
0.53
6.39
Enters FV= 275.
Calculates i.
Calculates annual interest
rate.
Example: You receive $30,000 from the bank as a 30-year, 13%
mortgage. What monthly payment must you make to the bank to
fully amortize the mortgage?
30,000
PV
13
12
1 ; 2 I 3 | I 358 I 359| 3601
PMT
Keystrokes
\T\R [REG]
30 [ENTER! 12 [x] [A]
13 [ENTER] 12 HE
30000 [C]
Display
360.00
1.08
30,000.00
-331.86
Clears financial variables.
Enters n = 30 X 12.
Enters i= 13/12.
Enters PV= 30,000.
Calculates PMT
(money paid out).