4.3. InvToRiemann

There is a simple function which combines the action of the previous two. It also has a second argument:

In a single line:

In[87]:=

Out[87]=

It is possible to give a list of invariants:

In[88]:=

Out[88]=

In[89]:=

Out[89]=

In[90]:=

Out[90]//TableForm=

With contracted Riemanns substituted by Riccis,

In[91]:=

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In[92]:=

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In[93]:=

Out[93]//TableForm=

Note that we have got a minus sign. This is because the invariants are sorted with respect to their Riemann-only expression:

Created by Mathematica  (May 16, 2008)