Downloading the Software

The price is (€20) and lets face it, it will take an experienced mathematician many hours to make these calculations and also the materials themselves will cost many times this.  So I think this is good value for money.  This is more than I would like to charge but the market is very small and it only just covers the cost of running this site 

To run the code you need to download both the program v2.9 (350k) and the key-file and save these in the same directory.  The program will run with reduced functionality without the key-file.  After you pay with Paypal you will be taken to a page where you can download the key-file. 

It is important that you download the program first and make sure that it 
runs on your machine before you pay.

The program is for personal use only, it cannot be resold or distributed.

please send me pictures of sundials you have built.