The interest factors are placed into three groups:
- Group A: Discrete cash flow with end-of-period compounding.
- Group B: Discrete cash flow with continuous compounding.
- Group C: Uniform cash flow with continuous compounding.
The user first highlights the desired group of interest factors required by clicking on the appropriate tab of the application - Group A, Group B, or Group C.
Once the desired group is highlighted, the user then selects the specific interest factor to be used for calculations.
In portrait mode, the basic interest factors are available with scrolling ability.
However, when the device is oriented in landscape mode, not only are the various interest factors available, but a brief description of each interest factor is displayed in the left pane of the application.
NOTE: This engineering economics application was primarily designed to run on a handheld device, but will also display admirably on a tablet device.
Input the starting amount of the investment, the expected return rate and standard deviation, and length of investment. The app will then calculate a singular example to show the year by year changes as well as running the test multiple times to calculate different percentiles of the final return of the investment.