1. Select the number of parts you wish to use by adjusting the slider to the appropriate number.[br]2. Type in the whole number you wish to use in the top circle. The top bar will adjust appropriately.[br]3. Type into the lower circles the part values you wish to use. The lower bar will fill up with the numbers.[br]4. If you wish to make all these part values as equal as possible, click on the 'Equalise' button.[br]5. To reset the lower circle inputs, click on the 'Clear' button.