Curvature - calculation of curvature 2-forms

allows one to calculate curvature 2-forms.
  • id - variable - curvature identifier.
  • If a connection is calculated or defined, then the curvature can be calculated completely, otherwise just the curvature identifier is declared as a curvature. To get the result of the calculation use iota operator.
  • The definition is as follows: , where are connection 1-forms, n is the dimension.