The Improved MATLAB Functions Expm and Logm

The matrix exponential is a ubiquitous matrix function, important both for theory and for practical computation. The matrix logarithm, an inverse to the exponential, is also increasingly used (see my earlier post, 400 Years of Logarithms). MATLAB R2015b introduced new versions of the expm and logm functions. The Release Notes say The algorithms for expm, … Continue reading The Improved MATLAB Functions Expm and Logm

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