The logarithm of an n×nn\times nn×n matrix AAA is given by ln(A)=∑m=1∞(−1)m+1(A−I)mm\ln(A) = \sum_{m=1}^\infty (-1)^{m+1}\frac{(A-I)^m}{m}ln(A)=m=1∑∞(−1)m+1m(A−I)m whenever the sequence converges.
Wikidata ID: Q902017