Have you ever tried to build a multisided flower pot with sloped sides and found that you could never quite make the joints fit? I have developed a chart and the equation and also have input these to excel spreadsheet. This will allow you to calculate any wall angle 0 to 90 deg with any number of sides 3 sides and up. The program will also give all the information you need for any pryamid shaped project (roofs for bird houses). All this can be cut on any table saw or even a skil saw. All of the joints fit tight reguardless of the number of sides or the wall angle. If you are interested email me at firstname.lastname@example.org for further information.