Financial Calculations

Several TI-Nspire™ functions provide financial calculations, such as time value of money, amortization calculations, and return on investment calculations.

The Calculator application also includes a Finance Solver. It lets you dynamically solve several types of problems, such as loans and investments.

Using the Finance Solver

1. Open the Finance Solver.

From the Finance menu, click Finance Solver.

The Finance Solver displays its default values (or previous values, if you have already used the solver in the current problem).

2. Enter each known value, using Tab to cycle through the items.
The help information at the bottom of the Finance Solver describes each item.
You might need to temporarily skip the value that you want to calculate.
Make sure to set PpY, CpY, and PmtAt to the correct settings (12, 12, and END in this example).
3. Press Tab as necessary to select the item that you want to calculate, and then press Enter.

The Finance Solver calculates the value and stores all the values in “tvm.” variables, such as tvm.n and tvm.pmt. These variables are accessible to all TI-Nspire™ applications within the same problem.

Finance Functions Included

In addition to the Finance Solver, TI-Nspire™ built-in finance functions include:

TVM functions for calculating future value, present value, number of payments, interest rate, and payment amount.
Amortization information such as amortization tables, balance, sum of interest payments, and sum of principal payments.
Net present value, internal rate of return, and modified rate of return.
Conversions between nominal and effective interest rates, and calculation of days between dates.

Notes:

Finance functions do not automatically store their argument values or results to the TVM variables.
For a complete list of TI-Nspire™ functions, see the Reference Guide.