Dodgson condensation expressions we obtained for formula_48 and dividing out by formula_58 (this is allowed if one thinks of the identities as polynomial identities over the ring of polynomials in the formula_59 indeterminate variables formula_60). Dodgson condensation In mathematics, Dodgson condensation is a method of computing the determinants of square matrices. It is named for its inventor, Charles Lutwidge Dodgson (better known as Lewis Carroll). The method in the case of an "n" × "n" matrix is to construct an ("n" − 1) × ("n" − 1) matrix, an ("n" − 2) × ("n" − 2), and so on, finishing with a
Skeffington Lutwidge the Navy, and is listed as a lieutenant in 1763, taking command of the purchased cutter in April that year. He remained with her until 1765, serving in the area of Liverpool. Lutwidge, by now a commander, commissioned the bomb vessel in June 1771, and served in the Irish Sea until the "Carcass" was paid off in April 1773. The "Carcass" was then refitted at Sheerness between March and April for a voyage to the Arctic, with Lutwidge retaining command. The expedition, under the overall command of Constantine Phipps, who commanded , sailed from the Nore on 10 June 1773.