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  • Martin Reinecke
  • pypocketfft
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  • !30

Merged
Created Oct 18, 2019 by Martin Reinecke@mtrOwner

Various updates

  • Overview 4
  • Commits 8
  • Changes 3

This MR contains several fixes/improvements:

  • warning fixes for clang (hopefully without breaking MSVC again!)
  • switching back to the system sin/cos functions for twiddles (less code and no real loss of precision)
  • compact storage of twiddles in sincos_2pibyn (only O(sqrt(N)) instead of O(N)).
  • use sincos_2pibyn for twiddle calculation in some DCTs/DSTs, where sin/cos were called directly so far
  • size reduction in Bluestein plans by making use of symmetries.

@g-peterbell any comments?

Edited Oct 18, 2019 by Martin Reinecke
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Source branch: tweak_twiddles