JuliaDiff / JuliaDiff/Diffractor.jl
`x.re` gives a Tangent not a Complex
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- Dominant language
- Julia
- Stars
- 453
- Forks
- 33
- PR merge metrics
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Description
julia> gradient(x -> x.re, 2+3im)
(Tangent{Complex{Int64}}(re = 1,),)
julia> gradient(x -> abs2(x * x.re), 4+5im)
ERROR: MethodError: no method matching +(::ComplexF64, ::Tangent{Complex{Int64}, NamedTuple{(:re,), Tuple{Float64}}})
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- Read the whole issue, then the project's contributing guide.
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Research direction
No file or test is named; first reproduce both Julia examples from the issue and trace how complex tangents are handled. Done means the first expression produces the expected Complex result and the second no longer raises the shown MethodError.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100