'Computerisable' is a remarkable concept as it bypasses the typical intermediary decisions that are usually made during calculations. It represents a model of computational simplicity. Charles Dodgson had a profound understanding of the notion of the rank of a linear system, which was a significant contribution to both linear algebra and the theory of determinants.
There is an interesting connection between Charles' work on determinants and the Alice books in terms of their inversions and mirror imaging. Carroll's mind, much like that of the White Knight, appeared to function most effectively when he was perceiving things upside down. The method of condensation is analogous to Alice shrinking after drinking from the bottle labeled 'drink me'. A large array of numbers gradually diminishes in size until only a single number, the determinant, remains.
It is also worth noting that Carrol worked on Darwin's books. Additionally, there is the topic of abstinence from the attendance at theatres by Christians. This aspect may have had an influence on Carroll's life and perhaps even on his works, although the exact nature of this connection remains to be explored further.