now i have a function defined on Z+(adsbygoogle = window.adsbygoogle || []).push({});

that is, it is defined on all positive integers, and it is complex

now i know that it is the sum of a few (perhaps 6) exponential functions in the form of A_i exp(k_i x)

how can i decompose the original function into the exponential functions? i.e., determine the values of k_i and A_i?

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# How to decompose a function into exponential functions?

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