Issues

• Loading FastTransforms.jl can make FFTs via FFTW.jl 100x slower due to threading conflicts

  JuliaApproximation/FastTransforms.jl#267 · Filter by author ranocha opened on Apr 9, 2026
  

• plan_transform fails with 3D Ultraspherical tensor product

  JuliaApproximation/FastTransforms.jl#266 · Filter by author Jpunter16 opened on Feb 28, 2026
  1

• LibFastTransforms crashing in tests on 1.12

  JuliaApproximation/FastTransforms.jl#263 · Filter by author dlfivefifty opened on Oct 9, 2025
  2

• Unwanted sine modes appearing in convolution using FFT

  JuliaApproximation/FastTransforms.jl#257 · Filter by author pw0908 opened on Jan 15, 2025
  1

• Allocating lmul!

  JuliaApproximation/FastTransforms.jl#253 · Filter by author rveltz opened on Sep 12, 2024
  7

• Can't use empty vectors in th_cheb2leg or th_leg2cheb

  JuliaApproximation/FastTransforms.jl#248 · Filter by author DanielVandH opened on Jul 21, 2024

• Segmentation fault for spherical harmonic transform

  JuliaApproximation/FastTransforms.jl#238 · Filter by author AshtonSBradley opened on Dec 4, 2023
  5

• Move out forwardrecurrence and clenshaw

  JuliaApproximation/FastTransforms.jl#217 · Filter by author dlfivefifty opened on Apr 4, 2023

• Add multidimensional interface for lib transforms

  JuliaApproximation/FastTransforms.jl#210 · Filter by author dlfivefifty opened on Mar 27, 2023
  3

• Use Toeplitz-dot-Hankel for very large dimensional transforms

  JuliaApproximation/FastTransforms.jl#209 · Filter by author dlfivefifty opened on Mar 27, 2023
  4

• cheb2ultra seems unreasonably slow

  JuliaApproximation/FastTransforms.jl#204 · Filter by author jishnub opened on Mar 26, 2023
  2

• Add a slow path in ultra2ultra transforms?

  JuliaApproximation/FastTransforms.jl#200 · Filter by author jishnub opened on Mar 26, 2023

• sph methods slow?

  JuliaApproximation/FastTransforms.jl#191 · Filter by author AshtonSBradley opened on Jan 29, 2023
  5

• Potentially suboptimal performance in r2r transforms?

  JuliaApproximation/FastTransforms.jl#189 · Filter by author jishnub opened on Nov 15, 2022
  1

• Move Chebyshev functionality to Chebyshevtransforms.jl

  JuliaApproximation/FastTransforms.jl#186 · Filter by author Luapulu opened on Sep 21, 2022

• jac2cheb: Crash on M1 (with Rosetta)

  JuliaApproximation/FastTransforms.jl#175 · Filter by author johnbcoughlin opened on Jun 6, 2022

• Why are second kind Chebyshev points the first kind extrema?

  JuliaApproximation/FastTransforms.jl#174 · Filter by author MikaelSlevinsky opened on May 12, 2022

• Are vector spherical harmonic transforms available?

  JuliaApproximation/FastTransforms.jl#153 · Filter by author ajdawson opened on Sep 29, 2021
  2

• big chebyshevu

  JuliaApproximation/FastTransforms.jl#145 · Filter by author dlfivefifty opened on Jun 25, 2021
  3

• multidimensional nufft?

  JuliaApproximation/FastTransforms.jl#144 · Filter by author vavrines opened on May 24, 2021
  1

• GPU compatibility

  JuliaApproximation/FastTransforms.jl#142 · Filter by author maximilian-gelbrecht opened on Apr 29, 2021
  3

• More documentation / examples?

  JuliaApproximation/FastTransforms.jl#140 · Filter by author eschnett opened on Mar 14, 2021
  1

• cheb2leg(::Matrix) should do tensor product Cheb -> tensor product Leg

  JuliaApproximation/FastTransforms.jl#135 · Filter by author dlfivefifty opened on Feb 18, 2021
  1

• Allow other than Array in libfasttransforms calls

  JuliaApproximation/FastTransforms.jl#109 · Filter by author dlfivefifty opened on Jul 15, 2020
  1

• Evaluation of SH/Zernike/Triangle expansions/polynomials?

  JuliaApproximation/FastTransforms.jl#108 · Filter by author dlfivefifty opened on Jul 6, 2020
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