Calc’c elisp functions (imho) all have the prefix calcFunc-. So in order to use a calc function like vlen in an org table lisp formula, one could use calcFunc-vlen. That’s nice.
What bothers me is the lack of “on-line” documentation (i.e. usable with eldoc or completion frameworks).
All calc functions are nicely documented here: https://www.gnu.org/software/emacs/manual/html_mono/calc.html , thats good.
It is possible to modify a elisp’s function documentation. e.g. like so:
(put 'calcFunc-vlen 'function-documentation
"Computes the length of a vector.
The length of a non-vector is considered to be zero.
Note that matrices are just vectors of vectors for the purposes of this command.")
Now calcFunc-vlen would have a nice “on-line” documentation, usable with C-h f, autocompletion and eldoc.
Has anyone already bothered to gather some of those strings from the manual, in a more machine processable form? So I could save some work to create “on-line” documentation of the calc functions?
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You can use the helpful library, which puts links to the calc manual in the function documentation, among other things. What you call online documentation is just the package manual.