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Package Symbol
|
ClearCurvatureRelations
CurvatureRelationsQ
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SetCurvatureRelations
SetCurvatureRelations[
cd
]
sets the automatic curvature relations for the covariant derivative
cd
.
MORE INFORMATION
The curvature relations are replacement rules that send contractions of the Riemann tensor to the Ricci tensor or Ricci scalar.
The curvature relations are usually set during the definition of a covariant derivative or metric through the option
CurvatureRelations
.
The following options can be given:
Verbose
True
display extra information on whether the rules are cleared or not
Possible settings for
Verbose
include:
False
don't display any extra information
True
display extra information
EXAMPLES
CLOSE ALL
Basic Examples
(1)
With curvature relations disabled:
With curvature relations enabled:
With curvature relations disabled:
In[1]:=
Out[1]=
With curvature relations enabled:
In[2]:=
In[3]:=
Out[3]=
SEE ALSO
ClearCurvatureRelations
CurvatureRelationsQ