CASTI-89 TITANIUM (FINANCE APP) · CALC89
dbd(
Returns the number of days between two dates.
Syntax
dbd(date1, date2)
- Group
- Finance
- Arguments
- Takes two dates as numbers in the form MM.DDYY, as in the example.
- Availability
- Pro feature in Calc89
- Menu path
- APPS ▸ Finance ▸ CALC ▸ dbd(
- Origin
- On the TI-89 Titanium this command comes with the preinstalled Finance app
Example
| Input | Result |
|---|---|
| dbd(12.3103,1.0104) | 1 |
Typing dbd(12.3103,1.0104) on the home screen and pressing ENTER returns 1.
Keystrokes on the TI-89 Titanium
APPS9▼×13ENTER
The same key sequence inserts dbd( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- eff(Converts a nominal annual interest rate into the effective annual rate.
- irr(Returns the internal rate of return of a series of cash flows, the rate at which the net present value is zero.
- mirr(Returns the modified internal rate of return, which uses separate finance and reinvestment rates.
- nom(Converts an effective annual interest rate into the nominal annual rate.
- npv(Returns the net present value of a series of cash flows at a given interest rate.
- tvmFV(Time value of money: returns the future value of a loan or savings plan.
- tvmI(Time value of money: returns the annual interest rate in percent.
- tvmN(Time value of money: returns the number of payment periods.