ForwardDiff: Error ForwardDiff.Tag How to transform a Dual Type to a Float

[Tamas_Papp]

Yes, this is to be expected. Please reread the above:

@mcabbott

If Ψ₂ contains dual numbers, they won’t fit into ψ , hence the error. There’s no automatic conversion as this would silently lose the gradient information.

Generally, you need to keep the dual information, and preallocate arrays accordingly. It is hard to provide more specific help without an MWE.

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