Calculating Cash Flows - Texas Instruments TI-89 Software Manual

Sending the Application to Another Calculator with Var-Link
If you send the Finance application to another calculator, the other calculator receives the
application, including all finance functions as well as the
default values (not as they might be currently defined). If you want to send stored variable
values, first send the application, then send the variables using 2 °.
Note: After pressing 2 °, the finance variables are listed in the
access the function names, press ‰ on the TI-92 Plus or 2 ‰ on the TI-89.

Calculating Cash Flows

Use the cash flow functions,
periods. You can enter unequal cash flows, which can be cash inflows or outflows. The syntax
descriptions for
Catalog Variables/ Arguments
InterestRate , CFO , CFList [ CFFreq ])
npv(
CFO , CFList [, CFFreq ])
irr(
¦
interest rate is the rate by which to discount the cash flows (the cost of money) over one
period.
¦
CF0 is the initial cash flow at time 0; it must be a real number.
¦
CFList is a list of cash flow amounts after the initial cash flow CF0.
¦
CFFreq is a list in which each element specifies the frequency of occurrence for a
grouped (consecutive) cash flow amount, which is the corresponding element of CFList.
The default is 1; if you enter values, they must be positive integers < 10,000.
For example, for the following cash flow function:
5000
6000
CF0 =
CFList =
CFFreq =
Finance Application for the TI-89 à TI-92 Plus
and
npv irr
and use these arguments.
npv( irr(
2000
6000 2000
M8,000 M8,000
5000
{6000,L8000,2000,L3000}
{2,2,2,1}
variables defined to their
TVM
, to analyze the value of money over equal time
Definition
net present value; the sum of the present
values for the cash inflows and outflows.
A positive result for
profitable investment.
internal rate of return; the interest rate at
which the net present value of the cash
flows is equal to zero.
M3,000
folder. To
Finance
indicates a
npv
8