[naitbit]

I don't think that linked table supports equation. It should be possible to add them. You don't have to look further than google docs that it is possible. I did write excel like language in the past and it was quite simple. Obviously there is performance hit when comparing js to native, but it should be fast enough. Sorry but I cannot give you my code because it was written as my job, but as I said writing something like that should not be a big challenge.

(Edited to improve readability)