JuliaDiff/ForwardDiff.jl

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Forward Mode Automatic Differentiation for Julia

Stars: 1k
Forks: 160
Open beginner issues: 0
Indexed issues: 128

Dominant language: Julia
License: No license data
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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128 open issues indexed

How to compute tensor Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#317 · Opened Apr 13, 2018
Perturbation Confusion II: The Tag Wars Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaDiff/ForwardDiff.jl#313 · Opened Apr 2, 2018
Using ArbFloat fails at subtraction / addition of Dual and ArbFloat Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#308 · 6 comments · Opened Mar 15, 2018
using lgamma evaluated at complex values Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#292 · Opened Jan 9, 2018
missing method AD'ing through a QR decomposition Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaDiff/ForwardDiff.jl#286 · 1 comment · Opened Dec 15, 2017
recommended method for unit testing Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ForwardDiff.jl#284 · 2 comments · Opened Dec 3, 2017
no promotion exists for ForwardDiff.Dual{N,T<:Real} and Float64 Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

JuliaDiff/ForwardDiff.jl#280 · 2 comments · Opened Nov 6, 2017
Some arithmetic functions fail after adding tags Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#276 · 1 comment · 1 reaction · Opened Oct 6, 2017
`let` scope causes nested differentiation error Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#267 · 15 comments · Opened Sep 25, 2017
Defining different forward/backward pass behavior Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaDiff/ForwardDiff.jl#258 · Opened Sep 15, 2017
Dual for max when values agree? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#255 · 1 reaction · Opened Aug 31, 2017
Hessian should be symmetric Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ForwardDiff.jl#253 · 1 comment · Opened Aug 22, 2017
derivative of `norm` at 0 Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

JuliaDiff/ForwardDiff.jl#243 · 9 comments · 1 reaction · Opened Jul 17, 2017
Error trying to differentiate through a `Complex` Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

JuliaDiff/ForwardDiff.jl#239 · 8 comments · Opened Jun 29, 2017
Perturbation confusion Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#238 · 2 comments · Opened Jun 23, 2017
Examples Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaDiff/ForwardDiff.jl#229 · 1 reaction · Opened May 19, 2017
special case `log(Dual(Inf,Inf))` Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

JuliaDiff/ForwardDiff.jl#209 · 2 comments · Opened Mar 21, 2017
API for high-order scalar derivatives Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#187 · 5 comments · 1 reaction · Opened Jan 27, 2017
Replace generated functions in Partials code with new NTuple generators Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

JuliaDiff/ForwardDiff.jl#186 · Opened Jan 26, 2017
dynamic NaN-safe mode switching Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ForwardDiff.jl#181 · 3 comments · 3 reactions · Opened Dec 26, 2016
LinAlg.normalize fails on Vector{ForwardDiff.Dual} Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#175 · 1 comment · Opened Dec 14, 2016
support for `Base.expm` (need advice implementing) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#174 · 17 comments · 3 reactions · Opened Dec 12, 2016
Minor SIMD regression for `exp` with nested Duals Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/ForwardDiff.jl#167 · Opened Dec 5, 2016
Are second derivatives (and higher) inefficient? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#149 · 9 comments · 1 reaction · Opened Oct 1, 2016
Compatibility with Base linear algebra functions Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#111 · 11 comments · 1 reaction · Opened Mar 25, 2016
Manually inject derivative information that can't be computed by AD Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#89 · 17 comments · 1 reaction · Opened Jan 27, 2016
`Irrational` values don't work as input to API functions Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/ForwardDiff.jl#67 · 2 comments · Opened Oct 27, 2015
Provide way to specify which partial derivatives are computed for sparse Jacobians and Hessians Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaDiff/ForwardDiff.jl#43 · 3 comments · 1 reaction · Opened Sep 6, 2015

JuliaDiff/ForwardDiff.jl

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