Texas Instruments Calculator - A Appendix - Reference Information; Formulas

Appendix — Reference Information 85
A
Appendix — Reference Information
This appendix includes supplemental information to help you use your
BA II PLUSé and BA II PLUSé PROFESSIONAL calculator:
•Formulas
• Error conditions
• Accuracy information
• IRR (internal-rate-of-return) calculations
• Algebraic operating system (AOS™)
• Battery information
• In case of difficulty
• TI product service and warranty information
Formulas
This section lists formulas used internally by the calculator.
Time Value of Money
where: PMT Ā0
y =C/Y P P/Y
x
=(.01 Q I/Y) P C/Y
C/Y
=compounding periods per year
P/Y =payment periods per year
I/Y =interest rate per year
where:
PMT =0
The iteration used to compute i:
ie
yx1+()ln×()
[]1–=
i
–
FV PV÷()
1 N÷()
1–=
0 PV PMT G
i
11i+()
N–
–
i
------------------------------
FV 1 i+()
N–
×+×+=