Formula Field
Basic Coord. Field Subfields Remapping Color Remap DirectionFormula Field
The Formula field is a paradise for math fans. Mathematical formulas can be used to calculate values for each element that can be blended with other Fields or Modifier Layers in the respective Fields lists (e.g., Effectors or Deformers).
There is a series of default variables that can be used (Variables field below the Formula field). More information about how to work with formula values can be found here.