Reply to post:

"there's a proof-of-concept HTML-only calculator – so there's precedence for Datree's delusion."

I was intrigued, so I looked at the source.

It's a series of links to pre-written pages which show the result.

This is the same as a book index:

1x1: p2.1

1x2: p2.2

1x3: p2.3

page 2:

1: 1

2: 2

3: 3

etc.