| Type | Readable | Writeable | Constant |
| complex | In perturbinit and perturbloop sections of fractal formulas | Never | No |
The #dpixel predefined symbol returns the difference between the location of the current pixel and the location of the reference orbit when performing perturbation calculations. See perturbation equations for more information.
See #dz for an example of a formula using the #dpixel predefined symbol.
See Also
Writing fractal formulas
Perturbation equations
Perturbation calculations
#dz (predefined symbol)
#pixel (predefined symbol)