> From: "Viktor T. Toth" <vttoth at vttoth.com>
> Date: Sun, 29 Sep 2013 18:44:15 -0400
>
> Actually, the closing parenthesis should be after the word 'cmetric'. The
> parenthetical remark explains that lg is computed automatically (from the
> frame base) when the cmetric() function is called. This step may then
> followed by computing ug, which is not computed automatically by cmetric()
> when cframe_flag is true.
Thank you for the correction, Viktor, and apologies for the noise.
Q: why is ug not computed automatically, since lg is?
In any event, would it be appropriate/correct to add a reference to
see `petrov'? It seems that the example there illustrates the intended
meaning of this paragraph, yes?
>
> Years ago, when I spent a lot of time working on the tensor packages, I
> updated much (but not all) of the Ctensor/Itensor documentation. At the
> time, my goal was simply to make sure that there are no obvious gross
> mistakes in the documentation and that all features are described, however
> briefly. I also created several tensor examples. I've been meaning to
> incorporate these examples into the documentation in some tutorial form. The
> difficulty is the usual one: only 24 hours in a day, only 7 days in a
> week... Still, I swear I'll do it one of these days :-)
:-)
Leo