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I see an interesting spreadsheet that is actually a directed graph of some kind. Are there cell addresses hidden somewhere? Can this be used as a spreadsheet?

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It's not a DAG though, it is purely a tree (no shared children). There are no cell addresses.

You can kinda sorta use it as a spreadsheet, but it is pretty limited currently, see example here http://strlen.com/treesheets/docs/images/screenshots/screens... or also in the tutorial.

Looking through the source I see that a cell can contain a grid, which is a collection of cells, and those can nest.

I see why you don't want to worry about addressing cells, it would kill a lot of the utility of the program.

What are the tradeoffs in your mind?

I guess I always found the way traditional spreadsheets address cells very clumsy, especially with hidden formulas, and I enjoy inventing new ways of programming :) I can't claim this is better yet, since I haven't used it that much. I like the visible formulas as a programmer, but I could imagine others don't.

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