string: Unless otherwise stated, the matrix functions and FreÃÅchet derivatives were computed using the following algorithms:
   ‚Äî matrix exponential: scaling and squaring algorithms from [Al-Mohy and Higham 2009a], [Al-Mohy and Higham 2009b], ‚Äî matrix logarithm: inverse scaling and squaring algorithms from [Al-Mohy and Higham 2012], [Al-Mohy et al. 2013], ‚Äî real matrix powers: Schur‚ÄìPadeÃÅ algorithm [Higham and Lin 2013], ‚Äî general matrix functions: Schur‚ÄìParlett algorithm [Davies and Higham 2003].