Is it possible to write series ##\ln x=\sum_na_nx^n##. I am asking you this because this is Taylor series around zero and ##\ln 0## is not defined.(adsbygoogle = window.adsbygoogle || []).push({});

And if ##A## is matrix is it possible to write

##\ln A=\sum_na_nA^n##. Thanks for the answer!

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# Function of operators. Series, matrices.

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