You can try new parameter values by typing one after the other, but it is much better to use the Explore feature. The Explore feature makes experimenting with parameters easier and more fun.
If you click on a parameter to give it the keyboard focus, a small window will pop up below the input box with two buttons. These invoke the Explore and Eyedropper features.
Click the Explore button to start exploring the parameter.
The Explore window will pop up. It contains a coordinate grid, rulers, and zooming controls.
Click inside the coordinate grid to select a new value. The Explore window will close and the new parameter value will be applied.
The Explore feature works with complex, floating-point, and integer parameters. The picture above shows the Explore window in complex mode. When exploring floating-point and integer parameters, the vertical ruler is not included.
Working with fractal formulas