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- The Extents of the fractal are the range of the complex plane
- over which the fractal will be calculated.
-
- The "X Range" values are the left and right (lower and upper)
- decimal numbers that define the rectangle's range in the X, or real,
- or left-to-right range of the complex plane.
-
- The "Y Range" values are the top and bottom (upper and lower)
- decimal numbers that define the rectangle's range in the
- Y, or imaginary, or top-to-bottom range of the complex plane.
-
- The numbers that can be entered are limited, and will be automatically
- adjusted if entered out of limits.
- This can be because of restrictions in the fractal calculation
- algorithms, or just because looking at a wider range lacks
- detail and is therefore uninteresting.
-
- If you are interested in zeroing in at a particular complex number,
- that value can be entered as the "Center" X and Y values.
- The Left, Right, Top, and Bottom values will then be automatically
- adjusted to make that value the center but stay in
- acceptable limits.
-
- When entry is complete, select OK, or press Enter.
- To exit with no changes, select Cancel, or press Escape.
- To see the default (built-in) values, press Default.
- To proceed with the default values, press Default, then OK.
- Exiting with OK will cause the fractal to be recalculated
- over the new extents.