Question: How to fit a complex-valued function to a complex-valued data?


I have a question about fitting a function to experiemental data. The experimental data is Di = X(zi) +I*Y(zi) for a zi = [z1 z1+dz ...z1+dz*N], where zi are real values. I want to fit a complex function f(z,a,b,c) to the data zi and Di , where a,b,c are complex-valued parameters. Does someone know how to fit a complex function to a complex data? The Maple function that I found work only with real functions and data.

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