This works. Thanks Eric.

On Tue, 18 Sep 2018 at 05:20 Eric S Fraga <esflists@gmail.com> wrote:
On Monday, 17 Sep 2018 at 16:36, Nishan Singh Mann wrote:
> Given a table of the form
> | a | b | c |
> |[2,3] | [4,6] | formula
>
> What is the formula for column C such that elementwise division is
> performed to obtain [2,2]. I realize I've to use the (calc-map OPR)
> function but I am not an expert in elisp. Thanks for reading.
> Regards,
> Nishan

Try

| a     | b     | c          |
| [2,3] | [4,6] | [0.5, 0.5] |
#+TBLFM: @2$3=map(div,$1,$2)


--
Eric S Fraga via Emacs 27.0.50, Org release_9.1.11-620-ga548e4
--
Nishan Singh Mann