Possible error in jax_lensing/spectral.py

[NiallJeffrey]

https://github.com/CosmoStat/jax-lensing/blob/master/jax_lensing/spectral.py

Line 32 and 33. If this is meant to give ell (spherical harmonic), ell should be bounded by the maximum angular size nyquist*pixel_size and the smallest angular size pixel_size.

The current implementation gives an arbitrarily low minimum ell value for a finite sized patch.

[EiffL]

Yeahm this is not really an error. it is what it is... ell=0 is still meaningfull, that's the constant of your field, but the user should just know that this is a flat sky approximation, and that the "ell" are not accurate toward low values.