JuliaDiff/FiniteDifferences.jl

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High accuracy derivatives, estimated via numerical finite differences (formerly FDM.jl)

Stars: 318
Forks: 32
Open beginner issues: 0
Indexed issues: 34

Dominant language: Julia
License: MIT
Last GitHub push: May 25, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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34 open issues indexed

TagBot: Manual intervention needed for releases Open

tagbot-manual

Difficulty 1/5 Under an hour Newbie friendliness 45/100

JuliaDiff/FiniteDifferences.jl#250 · 1 comment · Opened May 25, 2026
Accept Unitful numbers as input Open

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

JuliaDiff/FiniteDifferences.jl#243 · 3 comments · Opened Aug 27, 2025
Type issues with ReverseDiff over FiniteDifferences jvp and undocumented requirement to set adapt=0 Open

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

JuliaDiff/FiniteDifferences.jl#242 · 1 comment · Opened Aug 22, 2025
BigFloats give Float64 accuracy — doesn't use the precision of the arguments Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaDiff/FiniteDifferences.jl#240 · 2 comments · Opened Oct 8, 2024
NaNs inputs to function when using one-sided differences Open

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

JuliaDiff/FiniteDifferences.jl#239 · 3 comments · Opened Jun 17, 2024
Type Conversion Error with Measurements Open

Difficulty 3/5 1-2 days Newbie friendliness 32/100

JuliaDiff/FiniteDifferences.jl#211 · 1 comment · Opened Dec 20, 2022
`to_vec` should drop Bools Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

JuliaDiff/FiniteDifferences.jl#206 · Opened Jul 25, 2022
Cross derivatives of a multivariate function? Open

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

JuliaDiff/FiniteDifferences.jl#205 · 3 comments · Opened Jul 6, 2022
the formulea for calculating derivatives of different error orders Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

JuliaDiff/FiniteDifferences.jl#204 · 5 comments · Opened May 26, 2022
gradient of function with Sparse Matrix fails: Open

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

JuliaDiff/FiniteDifferences.jl#198 · Opened Dec 7, 2021
to_vec errors for StepRanges Open

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

JuliaDiff/FiniteDifferences.jl#193 · Opened Oct 1, 2021
Error if given nonfinite primal? Open

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

JuliaDiff/FiniteDifferences.jl#192 · 2 comments · 1 reaction · Opened Oct 1, 2021
investigate whether we can specialize less Open

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

JuliaDiff/FiniteDifferences.jl#190 · 1 comment · Opened Aug 13, 2021
Should `to_vec(::Integer)` return an empty vector Open

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

JuliaDiff/FiniteDifferences.jl#188 · 8 comments · Opened Aug 4, 2021
error when trying to futher differentiate using Zygote Open

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

JuliaDiff/FiniteDifferences.jl#176 · 2 comments · Opened Jun 15, 2021
error when function may return both real and complex results Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

JuliaDiff/FiniteDifferences.jl#175 · Opened Jun 15, 2021
Symmetric double counts Open

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

JuliaDiff/FiniteDifferences.jl#164 · 6 comments · Opened May 27, 2021
infinite recursion of to_vec for wrapped arrays Open

bug

JuliaDiff/FiniteDifferences.jl#141 · 5 comments · 1 assignee · Opened Jan 20, 2021
to_vec doesn't preserve equality Open

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

JuliaDiff/FiniteDifferences.jl#132 · 7 comments · Opened Jan 3, 2021
Enable CI on 32-bit builds Open

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

JuliaDiff/FiniteDifferences.jl#122 · 2 reactions · Opened Nov 28, 2020
Improve accuracy by using Twitter Open

enhancement good first issue

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

JuliaDiff/FiniteDifferences.jl#120 · 4 comments · Opened Nov 23, 2020
bug(?) on round/floor/ceil Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

JuliaDiff/FiniteDifferences.jl#112 · 3 comments · 1 reaction · Opened Oct 14, 2020
Accuracy with Float32s is bad Open

bug good first issue help wanted

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

JuliaDiff/FiniteDifferences.jl#98 · 6 comments · Opened Jul 11, 2020
ChainRules types in FiniteDifferences to replace to_vec Open

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

JuliaDiff/FiniteDifferences.jl#97 · 5 comments · Opened Jul 11, 2020
jvp incorrect result rather than erroring Open

bug

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

JuliaDiff/FiniteDifferences.jl#90 · 10 comments · 1 reaction · Opened Jun 24, 2020
Better debugging info for when things break Open

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

JuliaDiff/FiniteDifferences.jl#82 · Opened Apr 30, 2020
Error computing j′vp of a scalar -> matrix function Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/FiniteDifferences.jl#80 · 6 comments · Opened Apr 29, 2020
Positive Semidefinite FDM Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

JuliaDiff/FiniteDifferences.jl#52 · 2 comments · Opened Nov 10, 2019
Roadmap to a v1.0.0 Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

JuliaDiff/FiniteDifferences.jl#48 · 2 comments · 2 reactions · Opened Oct 3, 2019
Meaning of order Open

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

JuliaDiff/FiniteDifferences.jl#35 · Opened Aug 5, 2019
Allow keyword arguments and skipping positional arguments Open

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

JuliaDiff/FiniteDifferences.jl#24 · 1 reaction · Opened Jun 20, 2019
Documentation Open

JuliaDiff/FiniteDifferences.jl#22 · 1 comment · 2 reactions · 1 assignee · Opened Jun 19, 2019
Gradients and Hessians Open

enhancement

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

JuliaDiff/FiniteDifferences.jl#2 · 6 comments · Opened Jan 18, 2018
Partial Derivatives Open

enhancement

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

JuliaDiff/FiniteDifferences.jl#1 · 3 comments · Opened Jan 18, 2018

JuliaDiff/FiniteDifferences.jl

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