to count the number of transpositions (derangements) in the permutation attached to a given term awlessly reproduces the right one. It seems, therefore, that Cramer's Rule is genuinely due to Cramer.
to count the number of transpositions (derangements) in the permutation attached to a given term awlessly reproduces the right one. It seems, therefore,that Cramer's Rule is genuinely due to Cramer.