JuliaApproximation/ClassicalOrthogonalPolynomials.jl

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A Julia package for classical orthogonal polynomials and expansions

Stars: 51
Forks: 9
Open beginner issues: 0
Indexed issues: 28
Avg merge: 3d 22h
Merged PRs (30d): 2

Dominant language: Julia
License: MIT
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

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28 open issues indexed

port over roots from ApproxFunOrthogonalPolynomials.jl Open

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#285 · 1 reaction · 2 assignees · Opened Sep 15, 2026
negative degree Hermite polynomials Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#283 · Opened Aug 29, 2026
Numerical accuracy of the Laguerre polynomials Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#282 · 2 comments · Opened Aug 8, 2026
Laguerre polynomials for complex numbers Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#281 · Opened Aug 8, 2026
Jacobi polymomials with negative integer parameters Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#279 · 1 comment · Opened Jul 26, 2026
ForwardDiff with plan transform fails Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#239 · 1 comment · Opened Apr 2, 2025
Inverse of Plan Legendre Transform alters input? Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#238 · 5 comments · Opened Mar 28, 2025
`no method matching checkpoints(::DomainSets.RealNumbers)` when expanding in `Fourier()` with an infinite slice Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#236 · Opened Mar 6, 2025
MethodErrors when expanding in `Fourier()[:, range]` with non-UnitRange `range` Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#235 · 1 comment · Opened Mar 6, 2025
Split package into ClassicalOrthogonalPolynomials.jl and OrthogonalPolynomialArrays.jl Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#221 · 1 comment · Opened Dec 7, 2024
Suggestion: Guidance on Choosing Classical Method Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#213 · 2 comments · Opened Nov 19, 2024
Can't evaluate `diff(diff(Fourier()))[0.0, [1]]` Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#210 · Opened Oct 27, 2024
Fast Legendre Transform Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#206 · 17 comments · Opened Sep 3, 2024
Truncating the identity operator loses sparsity Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#202 · 1 comment · Opened Aug 13, 2024
Fourier{BigFloat} Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#155 · 6 comments · Opened Sep 22, 2023
Ambiguities in ClassicalOrthogonalPolynomials and its dependencies Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#154 · Opened Sep 14, 2023
How to get BigFloat accurate conversion operators? Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#88 · 4 comments · Opened Feb 10, 2022
How to cite the package? Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#87 · 4 comments · Opened Dec 25, 2021
Identity mapping wT -> wU Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#84 · 1 comment · Opened Oct 29, 2021
Make AbstractOPLayout <: AbstractPolynomialLayout Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#83 · Opened Oct 13, 2021
Make adaptive transform a Vcat instead of a cached vector? Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#76 · Opened Sep 24, 2021
NaN results from Jacobi expansion Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#67 · 2 comments · Opened Aug 23, 2021
Add roots Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#59 · 6 comments · Opened Aug 3, 2021
Unify LegendreWeight and QuasiOnes Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#57 · Opened Jul 30, 2021
What to do with axes of associated? Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#55 · Opened Jul 30, 2021
Ultraspherical{BigFloat} expansion broken Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#54 · Opened Jul 28, 2021
Shifted Legendre{BigFloat}() error Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#28 · 2 comments · Opened Mar 19, 2021
Make p-FEM more versatile Open

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

JuliaApproximation/ClassicalOrthogonalPolynomials.jl#13 · Opened Feb 18, 2021

JuliaApproximation/ClassicalOrthogonalPolynomials.jl

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