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C++ API

: s = logm (A)

: s = logm (A, opt_iters)

: [s, iters] = logm (…)

Compute the matrix logarithm of the square matrix A.

The implementation utilizes a Padé approximant and the identity

logm (A) = 2^k * logm (A^(1 / 2^k))

The optional input opt_iters is the maximum number of square roots to compute and defaults to 100.

The optional output iters is the number of square roots actually computed.

See also: expm, sqrtm.

Package: octave