When I do optimization calculations with the Optim package, an error occurred. The type of A1,A2,A3,A4 is ::Array{Complex{Float64},2}. I don’t know how to solve it. Is there a way to make optimize() support this type?Or what data type can replace this type and serve as optimize()? [image]

Optim: MethodError: no method matching zero

Tamas_Papp August 18, 2020, 2:08pm 2

Please don’t post screenshots, and include an MWE.

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