Ultra Fractal is distributed with only a small number of standard formulas. Additional formulas are available from the online formula database. It contains thousands of fractal formulas, coloring algorithms, and transformations written by Ultra Fractal users.
To download and install the formulas from the online database, simply click Update Public Formulas on the Options menu in Ultra Fractal and follow the instructions.
You can also download the public formula files manually here:
If you download these files yourself, you will need to unpack the contents and place them in your Formulas\Public folder.