HP 15c User Manual
Page 31
Section 1: Using
_ Effectively
31
Example: You place $155 in a savings account paying 5¾% compounded monthly. What
sum of money can you withdraw at the end of 9 years?
Keystrokes
Display
|¥
Run mode.
´CLEARQ
Clears financial variables.
´•2
´U
Activates User mode.
|"0
Ordinary annuity.
9
v12*A
108.00
Enters n = 9 × 12.
5.75
v12÷B
0.48
Enters i = 5.75 / 12.
155
”C
-155.00
Enters PV = −155 (money paid
out).
E¦
259.74
Calculates FV.
If you desire a sum of $275, what would be the required interest rate?
Keystrokes
Display
275
E
275.00
Enters FV = 275.
B¦
0.53
Calculates i.
12
*
6.39
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?