Finanzas texas ti 89


Finance Application for the TI-89 / TI-92 Plus
Important Information Where to Find Installation Instructions The Time-Value-of-Money (TVM) Solver Editing Values in the TVM Solver Calculating TVM Outside of the TVM Solver Finance Functions Calculating Cash Flows Calculating Amortization Calculating Interest Conversion Finding Days between Dates Defining Payment Method Finance Examples Example1 — Financing a Car Example 2 — Calculating Interest on a Fixed Payment Example 3: — Amortization Error Messages Error Recovery Instructions Miscellaneous How to Contact Customer Support 2 3 4 5 6 7 8 9 9 10 10 11 11 12 13 15 16 17 18

Finance Application for the TI-89 / TI-92 Plus

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Important Information
Texas Instruments makes no warranty, either expressed or implied, including butnot limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available solely on an “as-is” basis. In no event shall Texas Instruments be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials, and thesole and exclusive liability of Texas Instruments, regardless of the form of action, shall not exceed the purchase price of this product. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

© 2000 Texas Instruments Incorporated TINGRAPH LINK and TI-Cares are trademarks of Texas Instruments Incorporated.Finance Application for the TI-89 à TI-92 Plus

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Where to Find Installation Instructions
For detailed instructions on installing this and other Flash applications, point your web browser to:
http://www.ti.com/calc/docs/guides.htm

Installing this application requires TI-GRAPH LINKé. To download a free copy of TI-GRAPH LINK for the TI-89 / TI-92 Plus, Point your web browser to:http://www.ti.com/calc/docs/link.htm

Finance Application for the TI-89 / TI-92 Plus

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The Time-Value-of-Money (TVM) Solver
Use Time-Value-of-Money (TVM) functions to analyze financial instruments such as annuities, loans, mortgages, leases, and savings. The TVM Solver screen automatically displays when you run the Finance application. It displays the time-value-of-money (TVM) variables: Ú, æ,PV, PMT, FV. Given four variable values, the TVM Solver solves for the fifth variable. To access the variables outside the TVM editor, press 2 °. They are located in the Finance folder. Note: Exit the TVM Solver, and then press 2 ° to display the TVM variables. Otherwise, the variable currently highlighted by the cursor in the TVM Solver will not display in the VAR-LINK variable list. Press C and Dto move the cursor between variables. After entering a new value, press D or ¸ to save it. To solve for the unknown variable, press „ Compute or ¥ ¸. Note: The VAR-LINK Finance folder (where TVM variables are stored) is used by this application and previously-stored data can be overwritten without notification. Avoid using this folder for storing personal data.
TVM variables
N I PV PMT FV PpYCpY END BEGIN

Default
0 0 0 0 0 1 1 END

Definition

Value Type

Number of payment periods Annual interest rate (converted to a per-period rate based on the values of PpY and CpY) Present value Payment amount Future value Payments per year Compounding periods per year

real number real number real number real number real number integer > 0 integer > 0

Set annuity due (i.e. specifywhether payment is N/A at the end or beginning of each period)

When you store a value to PpY in the TVM Solver only, the value for CpY automatically changes to the same value. To store a unique value to CpY, you must store the value to CpY after you have stored a value to PpY. If you store a value to PpY outside the TVM Solver, the value for CpY does not change. Note: Enter cash inflows as...