Release 4.0

Parameters - z

Name: z

Type: vector

Read/Write: Read+Write

Context: Transformation, Coloring

Description:

This predefined vector variable must be used as the main iteration variable. For convenience it is automatically defined.

In formulas you must use this variable as the main iteration variable. You could use any other variable as the main iteration variable, not using z at all. But then most of the coloring formulas, which access the z value will not work.

In Coloring formulas you can access this variable to retrieve the last z value. You can then color pixels according to some algorithm which depends on the last z value.