
E-mail me at: mcgaw@clara.net

Visit my Web site at: home.clara.net/mcgaw/

**** INTEREST 1.0 *******


For the Psion Siena only.


Introduction:

Interest 1.0 is small but very useful application which calculates interest accumulated after a period of time. It removes the lengthy calculation required when doing it manually.
For example: Interest rate of 5.2 % of 3500 for 82 days would be calculated manually as; 5.2 divided by 100 divided by 365 multiplied by 3500.
As you can see, this is a lengthy process which I have made easier by doing all the calculation for you.
Because of the limited memory on a Siena, I have put the 'Help' file in this 'Readme' file instead of on the Siena to save memory.

Installation:

Interest 1.0 is very easy to install simply by copying the 'interest.opa' file to the 'opa' directory on your Siena.


**** HELP FILE ******

Saving Calculation:

Having entered the Amount, Interest Rate, and the Length of time; this data can be saved to disk to be loaded at a later date.

Loading Calculation:

Having saved a calculation to disk. You can load the Amount, Interest Rate and Length of time back into memory to be re-calculated.

Do Calculation:

To perform a calcualtion you have to enter 4 things:

(1) The ANNUAL interest rate. eg 5.6 %
If you have a monthly or daily interest rate then you will have to convert to an annual interest rate before you can peform the calcualtion.
This can be done as follows:

1. Daily interest rate: Multiply by 365
2. Monthly interest rate: Multiply by 12


(2) The Amount. eg 456.67

(3) The length of time. ie if you want to know the interest accumulated after 45 days then type in '45' or after 5 months then type in '5'.

(4) This requires you to press (D)ays , (M)onths or (Y)ears.
This is related to prompt (3) when you entered the length of time and now you have to enter whether that was '5 Days', '5 Months' or '5 Years'.

The interest accumulated will now be displayed on the screen.

NOTE: If you just want to calculate interest as a 'one off ' calculation.
ie 6.5% of 2000 and you aren't interested in any length of time, then enter '1' for the length of time and press (Y)ears for Time Calculation.


Compare Interest Rates:

This is basically so that you can compare 2 interest calculations so that you can see for yourself which will give you the best return. 
The calculations has exactly the same format as the 'Do Calculation'.


Set Accumulated:

By choosing this option you can say whether you want the interest calculated as accumulated interest or just as standard interest. To choose the former, select the 'Set accumulated On' option from the menu and for the later, select the 'Set accumulated Off' option.
Accumulated interest is when the interest is added to the original amount at the end of the year and the new interest is calculated on the original amount plus the interest earned. Hence it calculates the interest of interest.


Add/Subtract Interests:

This option is similar to compare interests except that you can add or subtract 2 interests together.
Simply enter the required information as normal and then you will be prompted to either (A)dd or (S)ubtract.
Then enter the information to calculate the second interest.
If you pressed (A)dd then the first and second interest will be added together and the result displayed.
If you pressed (S)ubtract then the second interest will be subtracted from the first and the result displayed.


How to register:

COSTS ONLY 2.00

WHEN YOU REGISTER, ALL THE REGISTRATION NAG SCREENS WILL DISAPPEAR FROM THE PROGRAM AND YOU WILL GET ALL FUTURE VERSIONS FOR FREE, AND I WILL NOTIFY YOU AS SOON AS THEY'RE RELEASED.

Go to the 'How to register' option in the options menu and it will display your unique registration number for Interest 1.0. Simply e-mail me at 'mcgaw@clara.net' with your name and registration number and I will e-mail you back immediately with instructions on how to register.

Please register Interest 1.0 as it has taken me along time to write and it's unfair and wrong to keep using it for free.


Thankyou,


Tom McGaw

